28418320

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1637}}^1$

素因数の和:1688

約数の個数: 80

約数和(自身を含む): 77995008

約数和(自身を除く): 49576688

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 56, 62, 70, 80, 112, 124, 140, 155, 217, 248, 280, 310, 434, 496, 560, 620, 868, 1085, 1240, 1637, 1736, 2170, 2480, 3274, 3472, 4340, 6548, 8185, 8680, 11459, 13096, 16370, 17360, 22918, 26192, 32740, 45836, 50747, 57295, 65480, 91672, 101494, 114590, 130960, 183344, 202988, 229180, 253735, 355229, 405976, 458360, 507470, 710458, 811952, 916720, 1014940, 1420916, 1776145, 2029880, 2841832, 3552290, 4059760, 5683664, 7104580, 14209160, 28418320]

約数ペア:

[(1, 28418320), (2, 14209160), (4, 7104580), (5, 5683664), (7, 4059760), (8, 3552290), (10, 2841832), (14, 2029880), (16, 1776145), (20, 1420916), (28, 1014940), (31, 916720), (35, 811952), (40, 710458), (56, 507470), (62, 458360), (70, 405976), (80, 355229), (112, 253735), (124, 229180), (140, 202988), (155, 183344), (217, 130960), (248, 114590), (280, 101494), (310, 91672), (434, 65480), (496, 57295), (560, 50747), (620, 45836), (868, 32740), (1085, 26192), (1240, 22918), (1637, 17360), (1736, 16370), (2170, 13096), (2480, 11459), (3274, 8680), (3472, 8185), (4340, 6548)]