1838540

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{137}}^1$

素因数の和:218

約数の個数: 48

約数和(自身を含む): 4312224

約数和(自身を除く): 2473684

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 61, 110, 122, 137, 220, 244, 274, 305, 548, 610, 671, 685, 1220, 1342, 1370, 1507, 2684, 2740, 3014, 3355, 6028, 6710, 7535, 8357, 13420, 15070, 16714, 30140, 33428, 41785, 83570, 91927, 167140, 183854, 367708, 459635, 919270, 1838540]

約数ペア:

[(1, 1838540), (2, 919270), (4, 459635), (5, 367708), (10, 183854), (11, 167140), (20, 91927), (22, 83570), (44, 41785), (55, 33428), (61, 30140), (110, 16714), (122, 15070), (137, 13420), (220, 8357), (244, 7535), (274, 6710), (305, 6028), (548, 3355), (610, 3014), (671, 2740), (685, 2684), (1220, 1507), (1342, 1370)]