18748645

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1$

素因数の和:205

約数の個数: 32

約数和(自身を含む): 24837120

約数和(自身を除く): 6088475

約数列:

[1, 5, 29, 31, 43, 97, 145, 155, 215, 485, 899, 1247, 1333, 2813, 3007, 4171, 4495, 6235, 6665, 14065, 15035, 20855, 38657, 87203, 120959, 129301, 193285, 436015, 604795, 646505, 3749729, 18748645]

約数ペア:

[(1, 18748645), (5, 3749729), (29, 646505), (31, 604795), (43, 436015), (97, 193285), (145, 129301), (155, 120959), (215, 87203), (485, 38657), (899, 20855), (1247, 15035), (1333, 14065), (2813, 6665), (3007, 6235), (4171, 4495)]