20180256444

素因数分解:

$2^2\times 3^2\times {\mathrm{71}}^1\times {\mathrm{607}}^1\times {\mathrm{13007}}^1$

素因数の和:13695

約数の個数: 72

約数和(自身を含む): 51818876928

約数和(自身を除く): 31638620484

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 71, 142, 213, 284, 426, 607, 639, 852, 1214, 1278, 1821, 2428, 2556, 3642, 5463, 7284, 10926, 13007, 21852, 26014, 39021, 43097, 52028, 78042, 86194, 117063, 129291, 156084, 172388, 234126, 258582, 387873, 468252, 517164, 775746, 923497, 1551492, 1846994, 2770491, 3693988, 5540982, 7895249, 8311473, 11081964, 15790498, 16622946, 23685747, 31580996, 33245892, 47371494, 71057241, 94742988, 142114482, 284228964, 560562679, 1121125358, 1681688037, 2242250716, 3363376074, 5045064111, 6726752148, 10090128222, 20180256444]

約数ペア:

[(1, 20180256444), (2, 10090128222), (3, 6726752148), (4, 5045064111), (6, 3363376074), (9, 2242250716), (12, 1681688037), (18, 1121125358), (36, 560562679), (71, 284228964), (142, 142114482), (213, 94742988), (284, 71057241), (426, 47371494), (607, 33245892), (639, 31580996), (852, 23685747), (1214, 16622946), (1278, 15790498), (1821, 11081964), (2428, 8311473), (2556, 7895249), (3642, 5540982), (5463, 3693988), (7284, 2770491), (10926, 1846994), (13007, 1551492), (21852, 923497), (26014, 775746), (39021, 517164), (43097, 468252), (52028, 387873), (78042, 258582), (86194, 234126), (117063, 172388), (129291, 156084)]