2121760

素因数分解:

$2^5\times 5^1\times {\mathrm{89}}^1\times {\mathrm{149}}^1$

素因数の和:253

約数の個数: 48

約数和(自身を含む): 5103000

約数和(自身を除く): 2981240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 89, 149, 160, 178, 298, 356, 445, 596, 712, 745, 890, 1192, 1424, 1490, 1780, 2384, 2848, 2980, 3560, 4768, 5960, 7120, 11920, 13261, 14240, 23840, 26522, 53044, 66305, 106088, 132610, 212176, 265220, 424352, 530440, 1060880, 2121760]

約数ペア:

[(1, 2121760), (2, 1060880), (4, 530440), (5, 424352), (8, 265220), (10, 212176), (16, 132610), (20, 106088), (32, 66305), (40, 53044), (80, 26522), (89, 23840), (149, 14240), (160, 13261), (178, 11920), (298, 7120), (356, 5960), (445, 4768), (596, 3560), (712, 2980), (745, 2848), (890, 2384), (1192, 1780), (1424, 1490)]