71783985

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1223}}^1$

素因数の和:1294

約数の個数: 64

約数和(自身を含む): 144764928

約数和(自身を除く): 72980943

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 43, 65, 91, 105, 129, 195, 215, 273, 301, 455, 559, 645, 903, 1223, 1365, 1505, 1677, 2795, 3669, 3913, 4515, 6115, 8385, 8561, 11739, 15899, 18345, 19565, 25683, 42805, 47697, 52589, 58695, 79495, 111293, 128415, 157767, 238485, 262945, 333879, 368123, 556465, 683657, 788835, 1104369, 1669395, 1840615, 2050971, 3418285, 4785599, 5521845, 10254855, 14356797, 23927995, 71783985]

約数ペア:

[(1, 71783985), (3, 23927995), (5, 14356797), (7, 10254855), (13, 5521845), (15, 4785599), (21, 3418285), (35, 2050971), (39, 1840615), (43, 1669395), (65, 1104369), (91, 788835), (105, 683657), (129, 556465), (195, 368123), (215, 333879), (273, 262945), (301, 238485), (455, 157767), (559, 128415), (645, 111293), (903, 79495), (1223, 58695), (1365, 52589), (1505, 47697), (1677, 42805), (2795, 25683), (3669, 19565), (3913, 18345), (4515, 15899), (6115, 11739), (8385, 8561)]