71111740

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{149}}^1\times {\mathrm{487}}^1$

素因数の和:659

約数の個数: 72

約数和(自身を含む): 175240800

約数和(自身を除く): 104129060

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 149, 196, 245, 298, 487, 490, 596, 745, 974, 980, 1043, 1490, 1948, 2086, 2435, 2980, 3409, 4172, 4870, 5215, 6818, 7301, 9740, 10430, 13636, 14602, 17045, 20860, 23863, 29204, 34090, 36505, 47726, 68180, 72563, 73010, 95452, 119315, 145126, 146020, 238630, 290252, 362815, 477260, 507941, 725630, 1015882, 1451260, 2031764, 2539705, 3555587, 5079410, 7111174, 10158820, 14222348, 17777935, 35555870, 71111740]

約数ペア:

[(1, 71111740), (2, 35555870), (4, 17777935), (5, 14222348), (7, 10158820), (10, 7111174), (14, 5079410), (20, 3555587), (28, 2539705), (35, 2031764), (49, 1451260), (70, 1015882), (98, 725630), (140, 507941), (149, 477260), (196, 362815), (245, 290252), (298, 238630), (487, 146020), (490, 145126), (596, 119315), (745, 95452), (974, 73010), (980, 72563), (1043, 68180), (1490, 47726), (1948, 36505), (2086, 34090), (2435, 29204), (2980, 23863), (3409, 20860), (4172, 17045), (4870, 14602), (5215, 13636), (6818, 10430), (7301, 9740)]