28288720

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{503}}^1$

素因数の和:572

約数の個数: 80

約数和(自身を含む): 71245440

約数和(自身を除く): 42956720

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 37, 38, 40, 74, 76, 80, 95, 148, 152, 185, 190, 296, 304, 370, 380, 503, 592, 703, 740, 760, 1006, 1406, 1480, 1520, 2012, 2515, 2812, 2960, 3515, 4024, 5030, 5624, 7030, 8048, 9557, 10060, 11248, 14060, 18611, 19114, 20120, 28120, 37222, 38228, 40240, 47785, 56240, 74444, 76456, 93055, 95570, 148888, 152912, 186110, 191140, 297776, 353609, 372220, 382280, 707218, 744440, 764560, 1414436, 1488880, 1768045, 2828872, 3536090, 5657744, 7072180, 14144360, 28288720]

約数ペア:

[(1, 28288720), (2, 14144360), (4, 7072180), (5, 5657744), (8, 3536090), (10, 2828872), (16, 1768045), (19, 1488880), (20, 1414436), (37, 764560), (38, 744440), (40, 707218), (74, 382280), (76, 372220), (80, 353609), (95, 297776), (148, 191140), (152, 186110), (185, 152912), (190, 148888), (296, 95570), (304, 93055), (370, 76456), (380, 74444), (503, 56240), (592, 47785), (703, 40240), (740, 38228), (760, 37222), (1006, 28120), (1406, 20120), (1480, 19114), (1520, 18611), (2012, 14060), (2515, 11248), (2812, 10060), (2960, 9557), (3515, 8048), (4024, 7030), (5030, 5624)]