20059375840

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{31}}^2\times {\mathrm{18637}}^1$

素因数の和:18721

約数の個数: 144

約数和(自身を含む): 55966782816

約数和(自身を除く): 35907406976

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 40, 56, 62, 70, 80, 112, 124, 140, 155, 160, 217, 224, 248, 280, 310, 434, 496, 560, 620, 868, 961, 992, 1085, 1120, 1240, 1736, 1922, 2170, 2480, 3472, 3844, 4340, 4805, 4960, 6727, 6944, 7688, 8680, 9610, 13454, 15376, 17360, 18637, 19220, 26908, 30752, 33635, 34720, 37274, 38440, 53816, 67270, 74548, 76880, 93185, 107632, 130459, 134540, 149096, 153760, 186370, 215264, 260918, 269080, 298192, 372740, 521836, 538160, 577747, 596384, 652295, 745480, 1043672, 1076320, 1155494, 1304590, 1490960, 2087344, 2310988, 2609180, 2888735, 2981920, 4044229, 4174688, 4621976, 5218360, 5777470, 8088458, 9243952, 10436720, 11554940, 16176916, 17910157, 18487904, 20221145, 20873440, 23109880, 32353832, 35820314, 40442290, 46219760, 64707664, 71640628, 80884580, 89550785, 92439520, 125371099, 129415328, 143281256, 161769160, 179101570, 250742198, 286562512, 323538320, 358203140, 501484396, 573125024, 626855495, 647076640, 716406280, 1002968792, 1253710990, 1432812560, 2005937584, 2507421980, 2865625120, 4011875168, 5014843960, 10029687920, 20059375840]

約数ペア:

[(1, 20059375840), (2, 10029687920), (4, 5014843960), (5, 4011875168), (7, 2865625120), (8, 2507421980), (10, 2005937584), (14, 1432812560), (16, 1253710990), (20, 1002968792), (28, 716406280), (31, 647076640), (32, 626855495), (35, 573125024), (40, 501484396), (56, 358203140), (62, 323538320), (70, 286562512), (80, 250742198), (112, 179101570), (124, 161769160), (140, 143281256), (155, 129415328), (160, 125371099), (217, 92439520), (224, 89550785), (248, 80884580), (280, 71640628), (310, 64707664), (434, 46219760), (496, 40442290), (560, 35820314), (620, 32353832), (868, 23109880), (961, 20873440), (992, 20221145), (1085, 18487904), (1120, 17910157), (1240, 16176916), (1736, 11554940), (1922, 10436720), (2170, 9243952), (2480, 8088458), (3472, 5777470), (3844, 5218360), (4340, 4621976), (4805, 4174688), (4960, 4044229), (6727, 2981920), (6944, 2888735), (7688, 2609180), (8680, 2310988), (9610, 2087344), (13454, 1490960), (15376, 1304590), (17360, 1155494), (18637, 1076320), (19220, 1043672), (26908, 745480), (30752, 652295), (33635, 596384), (34720, 577747), (37274, 538160), (38440, 521836), (53816, 372740), (67270, 298192), (74548, 269080), (76880, 260918), (93185, 215264), (107632, 186370), (130459, 153760), (134540, 149096)]