67915720

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{109}}^1\times {\mathrm{421}}^1$

素因数の和:578

約数の個数: 64

約数和(自身を含む): 158756400

約数和(自身を除く): 90840680

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 109, 148, 185, 218, 296, 370, 421, 436, 545, 740, 842, 872, 1090, 1480, 1684, 2105, 2180, 3368, 4033, 4210, 4360, 8066, 8420, 15577, 16132, 16840, 20165, 31154, 32264, 40330, 45889, 62308, 77885, 80660, 91778, 124616, 155770, 161320, 183556, 229445, 311540, 367112, 458890, 623080, 917780, 1697893, 1835560, 3395786, 6791572, 8489465, 13583144, 16978930, 33957860, 67915720]

約数ペア:

[(1, 67915720), (2, 33957860), (4, 16978930), (5, 13583144), (8, 8489465), (10, 6791572), (20, 3395786), (37, 1835560), (40, 1697893), (74, 917780), (109, 623080), (148, 458890), (185, 367112), (218, 311540), (296, 229445), (370, 183556), (421, 161320), (436, 155770), (545, 124616), (740, 91778), (842, 80660), (872, 77885), (1090, 62308), (1480, 45889), (1684, 40330), (2105, 32264), (2180, 31154), (3368, 20165), (4033, 16840), (4210, 16132), (4360, 15577), (8066, 8420)]