18794680

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{659}}^1$

素因数の和:724

約数の個数: 64

約数和(自身を含む): 45619200

約数和(自身を除く): 26824520

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 31, 40, 46, 62, 92, 115, 124, 155, 184, 230, 248, 310, 460, 620, 659, 713, 920, 1240, 1318, 1426, 2636, 2852, 3295, 3565, 5272, 5704, 6590, 7130, 13180, 14260, 15157, 20429, 26360, 28520, 30314, 40858, 60628, 75785, 81716, 102145, 121256, 151570, 163432, 204290, 303140, 408580, 469867, 606280, 817160, 939734, 1879468, 2349335, 3758936, 4698670, 9397340, 18794680]

約数ペア:

[(1, 18794680), (2, 9397340), (4, 4698670), (5, 3758936), (8, 2349335), (10, 1879468), (20, 939734), (23, 817160), (31, 606280), (40, 469867), (46, 408580), (62, 303140), (92, 204290), (115, 163432), (124, 151570), (155, 121256), (184, 102145), (230, 81716), (248, 75785), (310, 60628), (460, 40858), (620, 30314), (659, 28520), (713, 26360), (920, 20429), (1240, 15157), (1318, 14260), (1426, 13180), (2636, 7130), (2852, 6590), (3295, 5704), (3565, 5272)]