1272435920

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{283}}^1$

素因数の和:378

約数の個数: 240

約数和(自身を含む): 3661337088

約数和(自身を除く): 2388901168

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 37, 40, 49, 56, 62, 70, 74, 80, 98, 112, 124, 140, 148, 155, 185, 196, 217, 245, 248, 259, 280, 283, 296, 310, 370, 392, 434, 490, 496, 518, 560, 566, 592, 620, 740, 784, 868, 980, 1036, 1085, 1132, 1147, 1240, 1295, 1415, 1480, 1519, 1736, 1813, 1960, 1981, 2072, 2170, 2264, 2294, 2480, 2590, 2830, 2960, 3038, 3472, 3626, 3920, 3962, 4144, 4340, 4528, 4588, 5180, 5660, 5735, 6076, 7252, 7595, 7924, 8029, 8680, 8773, 9065, 9176, 9905, 10360, 10471, 11320, 11470, 12152, 13867, 14504, 15190, 15848, 16058, 17360, 17546, 18130, 18352, 19810, 20720, 20942, 22640, 22940, 24304, 27734, 29008, 30380, 31696, 32116, 35092, 36260, 39620, 40145, 41884, 43865, 45880, 52355, 55468, 56203, 60760, 61411, 64232, 69335, 70184, 72520, 73297, 79240, 80290, 83768, 87730, 91760, 104710, 110936, 112406, 121520, 122822, 128464, 138670, 140368, 145040, 146594, 158480, 160580, 167536, 175460, 209420, 221872, 224812, 245644, 277340, 281015, 293188, 307055, 321160, 324601, 350920, 366485, 418840, 429877, 449624, 491288, 513079, 554680, 562030, 586376, 614110, 642320, 649202, 701840, 732970, 837680, 859754, 899248, 982576, 1026158, 1109360, 1124060, 1172752, 1228220, 1298404, 1465940, 1623005, 1719508, 2052316, 2149385, 2248120, 2272207, 2456440, 2565395, 2596808, 2931880, 3246010, 3439016, 4104632, 4298770, 4496240, 4544414, 4912880, 5130790, 5193616, 5863760, 6492020, 6878032, 8209264, 8597540, 9088828, 10261580, 11361035, 12984040, 15905449, 17195080, 18177656, 20523160, 22722070, 25968080, 31810898, 34390160, 36355312, 41046320, 45444140, 63621796, 79527245, 90888280, 127243592, 159054490, 181776560, 254487184, 318108980, 636217960, 1272435920]

約数ペア:

[(1, 1272435920), (2, 636217960), (4, 318108980), (5, 254487184), (7, 181776560), (8, 159054490), (10, 127243592), (14, 90888280), (16, 79527245), (20, 63621796), (28, 45444140), (31, 41046320), (35, 36355312), (37, 34390160), (40, 31810898), (49, 25968080), (56, 22722070), (62, 20523160), (70, 18177656), (74, 17195080), (80, 15905449), (98, 12984040), (112, 11361035), (124, 10261580), (140, 9088828), (148, 8597540), (155, 8209264), (185, 6878032), (196, 6492020), (217, 5863760), (245, 5193616), (248, 5130790), (259, 4912880), (280, 4544414), (283, 4496240), (296, 4298770), (310, 4104632), (370, 3439016), (392, 3246010), (434, 2931880), (490, 2596808), (496, 2565395), (518, 2456440), (560, 2272207), (566, 2248120), (592, 2149385), (620, 2052316), (740, 1719508), (784, 1623005), (868, 1465940), (980, 1298404), (1036, 1228220), (1085, 1172752), (1132, 1124060), (1147, 1109360), (1240, 1026158), (1295, 982576), (1415, 899248), (1480, 859754), (1519, 837680), (1736, 732970), (1813, 701840), (1960, 649202), (1981, 642320), (2072, 614110), (2170, 586376), (2264, 562030), (2294, 554680), (2480, 513079), (2590, 491288), (2830, 449624), (2960, 429877), (3038, 418840), (3472, 366485), (3626, 350920), (3920, 324601), (3962, 321160), (4144, 307055), (4340, 293188), (4528, 281015), (4588, 277340), (5180, 245644), (5660, 224812), (5735, 221872), (6076, 209420), (7252, 175460), (7595, 167536), (7924, 160580), (8029, 158480), (8680, 146594), (8773, 145040), (9065, 140368), (9176, 138670), (9905, 128464), (10360, 122822), (10471, 121520), (11320, 112406), (11470, 110936), (12152, 104710), (13867, 91760), (14504, 87730), (15190, 83768), (15848, 80290), (16058, 79240), (17360, 73297), (17546, 72520), (18130, 70184), (18352, 69335), (19810, 64232), (20720, 61411), (20942, 60760), (22640, 56203), (22940, 55468), (24304, 52355), (27734, 45880), (29008, 43865), (30380, 41884), (31696, 40145), (32116, 39620), (35092, 36260)]