1721890660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{13681}}^1$

素因数の和:13757

約数の個数: 96

約数和(自身を含む): 4413265920

約数和(自身を除く): 2691375260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 31, 35, 58, 62, 70, 116, 124, 140, 145, 155, 203, 217, 290, 310, 406, 434, 580, 620, 812, 868, 899, 1015, 1085, 1798, 2030, 2170, 3596, 4060, 4340, 4495, 6293, 8990, 12586, 13681, 17980, 25172, 27362, 31465, 54724, 62930, 68405, 95767, 125860, 136810, 191534, 273620, 383068, 396749, 424111, 478835, 793498, 848222, 957670, 1586996, 1696444, 1915340, 1983745, 2120555, 2777243, 2968777, 3967490, 4241110, 5554486, 5937554, 7934980, 8482220, 11108972, 11875108, 12299219, 13886215, 14843885, 24598438, 27772430, 29687770, 49196876, 55544860, 59375540, 61496095, 86094533, 122992190, 172189066, 245984380, 344378132, 430472665, 860945330, 1721890660]

約数ペア:

[(1, 1721890660), (2, 860945330), (4, 430472665), (5, 344378132), (7, 245984380), (10, 172189066), (14, 122992190), (20, 86094533), (28, 61496095), (29, 59375540), (31, 55544860), (35, 49196876), (58, 29687770), (62, 27772430), (70, 24598438), (116, 14843885), (124, 13886215), (140, 12299219), (145, 11875108), (155, 11108972), (203, 8482220), (217, 7934980), (290, 5937554), (310, 5554486), (406, 4241110), (434, 3967490), (580, 2968777), (620, 2777243), (812, 2120555), (868, 1983745), (899, 1915340), (1015, 1696444), (1085, 1586996), (1798, 957670), (2030, 848222), (2170, 793498), (3596, 478835), (4060, 424111), (4340, 396749), (4495, 383068), (6293, 273620), (8990, 191534), (12586, 136810), (13681, 125860), (17980, 95767), (25172, 68405), (27362, 62930), (31465, 54724)]