80247820

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{6379}}^1$

素因数の和:6442

約数の個数: 48

約数和(自身を含む): 183284640

約数和(自身を除く): 103036820

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 37, 68, 74, 85, 148, 170, 185, 340, 370, 629, 740, 1258, 2516, 3145, 6290, 6379, 12580, 12758, 25516, 31895, 63790, 108443, 127580, 216886, 236023, 433772, 472046, 542215, 944092, 1084430, 1180115, 2168860, 2360230, 4012391, 4720460, 8024782, 16049564, 20061955, 40123910, 80247820]

約数ペア:

[(1, 80247820), (2, 40123910), (4, 20061955), (5, 16049564), (10, 8024782), (17, 4720460), (20, 4012391), (34, 2360230), (37, 2168860), (68, 1180115), (74, 1084430), (85, 944092), (148, 542215), (170, 472046), (185, 433772), (340, 236023), (370, 216886), (629, 127580), (740, 108443), (1258, 63790), (2516, 31895), (3145, 25516), (6290, 12758), (6379, 12580)]