12800520

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{31}}^2\times {\mathrm{37}}^1$

素因数の和:116

約数の個数: 144

約数和(自身を含む): 44148780

約数和(自身を除く): 31348260

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 31, 36, 37, 40, 45, 60, 62, 72, 74, 90, 93, 111, 120, 124, 148, 155, 180, 185, 186, 222, 248, 279, 296, 310, 333, 360, 370, 372, 444, 465, 555, 558, 620, 666, 740, 744, 888, 930, 961, 1110, 1116, 1147, 1240, 1332, 1395, 1480, 1665, 1860, 1922, 2220, 2232, 2294, 2664, 2790, 2883, 3330, 3441, 3720, 3844, 4440, 4588, 4805, 5580, 5735, 5766, 6660, 6882, 7688, 8649, 9176, 9610, 10323, 11160, 11470, 11532, 13320, 13764, 14415, 17205, 17298, 19220, 20646, 22940, 23064, 27528, 28830, 34410, 34596, 35557, 38440, 41292, 43245, 45880, 51615, 57660, 68820, 69192, 71114, 82584, 86490, 103230, 106671, 115320, 137640, 142228, 172980, 177785, 206460, 213342, 284456, 320013, 345960, 355570, 412920, 426684, 533355, 640026, 711140, 853368, 1066710, 1280052, 1422280, 1600065, 2133420, 2560104, 3200130, 4266840, 6400260, 12800520]

約数ペア:

[(1, 12800520), (2, 6400260), (3, 4266840), (4, 3200130), (5, 2560104), (6, 2133420), (8, 1600065), (9, 1422280), (10, 1280052), (12, 1066710), (15, 853368), (18, 711140), (20, 640026), (24, 533355), (30, 426684), (31, 412920), (36, 355570), (37, 345960), (40, 320013), (45, 284456), (60, 213342), (62, 206460), (72, 177785), (74, 172980), (90, 142228), (93, 137640), (111, 115320), (120, 106671), (124, 103230), (148, 86490), (155, 82584), (180, 71114), (185, 69192), (186, 68820), (222, 57660), (248, 51615), (279, 45880), (296, 43245), (310, 41292), (333, 38440), (360, 35557), (370, 34596), (372, 34410), (444, 28830), (465, 27528), (555, 23064), (558, 22940), (620, 20646), (666, 19220), (740, 17298), (744, 17205), (888, 14415), (930, 13764), (961, 13320), (1110, 11532), (1116, 11470), (1147, 11160), (1240, 10323), (1332, 9610), (1395, 9176), (1480, 8649), (1665, 7688), (1860, 6882), (1922, 6660), (2220, 5766), (2232, 5735), (2294, 5580), (2664, 4805), (2790, 4588), (2883, 4440), (3330, 3844), (3441, 3720)]