254366984

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{18803}}^1$

素因数の和:18917

約数の個数: 32

約数和(自身を含む): 507708000

約数和(自身を除く): 253341016

約数列:

[1, 2, 4, 8, 19, 38, 76, 89, 152, 178, 356, 712, 1691, 3382, 6764, 13528, 18803, 37606, 75212, 150424, 357257, 714514, 1429028, 1673467, 2858056, 3346934, 6693868, 13387736, 31795873, 63591746, 127183492, 254366984]

約数ペア:

[(1, 254366984), (2, 127183492), (4, 63591746), (8, 31795873), (19, 13387736), (38, 6693868), (76, 3346934), (89, 2858056), (152, 1673467), (178, 1429028), (356, 714514), (712, 357257), (1691, 150424), (3382, 75212), (6764, 37606), (13528, 18803)]