20104858420

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{15749}}^1$

素因数の和:15889

約数の個数: 96

約数和(自身を含む): 45722880000

約数和(自身を除く): 25618021580

約数列:

[1, 2, 4, 5, 10, 20, 29, 31, 58, 62, 71, 116, 124, 142, 145, 155, 284, 290, 310, 355, 580, 620, 710, 899, 1420, 1798, 2059, 2201, 3596, 4118, 4402, 4495, 8236, 8804, 8990, 10295, 11005, 15749, 17980, 20590, 22010, 31498, 41180, 44020, 62996, 63829, 78745, 127658, 157490, 255316, 314980, 319145, 456721, 488219, 638290, 913442, 976438, 1118179, 1276580, 1826884, 1952876, 2236358, 2283605, 2441095, 4472716, 4567210, 4882190, 5590895, 9134420, 9764380, 11181790, 14158351, 22363580, 28316702, 32427191, 34663549, 56633404, 64854382, 69327098, 70791755, 129708764, 138654196, 141583510, 162135955, 173317745, 283167020, 324271910, 346635490, 648543820, 693270980, 1005242921, 2010485842, 4020971684, 5026214605, 10052429210, 20104858420]

約数ペア:

[(1, 20104858420), (2, 10052429210), (4, 5026214605), (5, 4020971684), (10, 2010485842), (20, 1005242921), (29, 693270980), (31, 648543820), (58, 346635490), (62, 324271910), (71, 283167020), (116, 173317745), (124, 162135955), (142, 141583510), (145, 138654196), (155, 129708764), (284, 70791755), (290, 69327098), (310, 64854382), (355, 56633404), (580, 34663549), (620, 32427191), (710, 28316702), (899, 22363580), (1420, 14158351), (1798, 11181790), (2059, 9764380), (2201, 9134420), (3596, 5590895), (4118, 4882190), (4402, 4567210), (4495, 4472716), (8236, 2441095), (8804, 2283605), (8990, 2236358), (10295, 1952876), (11005, 1826884), (15749, 1276580), (17980, 1118179), (20590, 976438), (22010, 913442), (31498, 638290), (41180, 488219), (44020, 456721), (62996, 319145), (63829, 314980), (78745, 255316), (127658, 157490)]