31556140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{661}}^1$

素因数の和:719

約数の個数: 96

約数和(自身を含む): 85413888

約数和(自身を除く): 53857748

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 31, 35, 44, 55, 62, 70, 77, 110, 124, 140, 154, 155, 217, 220, 308, 310, 341, 385, 434, 620, 661, 682, 770, 868, 1085, 1322, 1364, 1540, 1705, 2170, 2387, 2644, 3305, 3410, 4340, 4627, 4774, 6610, 6820, 7271, 9254, 9548, 11935, 13220, 14542, 18508, 20491, 23135, 23870, 29084, 36355, 40982, 46270, 47740, 50897, 72710, 81964, 92540, 101794, 102455, 143437, 145420, 203588, 204910, 225401, 254485, 286874, 409820, 450802, 508970, 573748, 717185, 901604, 1017940, 1127005, 1434370, 1577807, 2254010, 2868740, 3155614, 4508020, 6311228, 7889035, 15778070, 31556140]

約数ペア:

[(1, 31556140), (2, 15778070), (4, 7889035), (5, 6311228), (7, 4508020), (10, 3155614), (11, 2868740), (14, 2254010), (20, 1577807), (22, 1434370), (28, 1127005), (31, 1017940), (35, 901604), (44, 717185), (55, 573748), (62, 508970), (70, 450802), (77, 409820), (110, 286874), (124, 254485), (140, 225401), (154, 204910), (155, 203588), (217, 145420), (220, 143437), (308, 102455), (310, 101794), (341, 92540), (385, 81964), (434, 72710), (620, 50897), (661, 47740), (682, 46270), (770, 40982), (868, 36355), (1085, 29084), (1322, 23870), (1364, 23135), (1540, 20491), (1705, 18508), (2170, 14542), (2387, 13220), (2644, 11935), (3305, 9548), (3410, 9254), (4340, 7271), (4627, 6820), (4774, 6610)]