221510320

素因数分解:

$2^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1\times {\mathrm{587}}^1$

素因数の和:742

約数の個数: 80

約数和(自身を含む): 531528480

約数和(自身を除く): 310018160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 80, 89, 106, 178, 212, 265, 356, 424, 445, 530, 587, 712, 848, 890, 1060, 1174, 1424, 1780, 2120, 2348, 2935, 3560, 4240, 4696, 4717, 5870, 7120, 9392, 9434, 11740, 18868, 23480, 23585, 31111, 37736, 46960, 47170, 52243, 62222, 75472, 94340, 104486, 124444, 155555, 188680, 208972, 248888, 261215, 311110, 377360, 417944, 497776, 522430, 622220, 835888, 1044860, 1244440, 2089720, 2488880, 2768879, 4179440, 5537758, 11075516, 13844395, 22151032, 27688790, 44302064, 55377580, 110755160, 221510320]

約数ペア:

[(1, 221510320), (2, 110755160), (4, 55377580), (5, 44302064), (8, 27688790), (10, 22151032), (16, 13844395), (20, 11075516), (40, 5537758), (53, 4179440), (80, 2768879), (89, 2488880), (106, 2089720), (178, 1244440), (212, 1044860), (265, 835888), (356, 622220), (424, 522430), (445, 497776), (530, 417944), (587, 377360), (712, 311110), (848, 261215), (890, 248888), (1060, 208972), (1174, 188680), (1424, 155555), (1780, 124444), (2120, 104486), (2348, 94340), (2935, 75472), (3560, 62222), (4240, 52243), (4696, 47170), (4717, 46960), (5870, 37736), (7120, 31111), (9392, 23585), (9434, 23480), (11740, 18868)]