18715691870

素因数分解:

$2^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{173}}^1\times {\mathrm{6221}}^1$

素因数の和:6485

約数の個数: 64

約数和(自身を含む): 35544842496

約数和(自身を除く): 16829150626

約数列:

[1, 2, 5, 10, 37, 47, 74, 94, 173, 185, 235, 346, 370, 470, 865, 1730, 1739, 3478, 6221, 6401, 8131, 8695, 12442, 12802, 16262, 17390, 31105, 32005, 40655, 62210, 64010, 81310, 230177, 292387, 300847, 460354, 584774, 601694, 1076233, 1150885, 1461935, 1504235, 2152466, 2301770, 2923870, 3008470, 5381165, 10762330, 10818319, 21636638, 39820621, 50582951, 54091595, 79641242, 101165902, 108183190, 199103105, 252914755, 398206210, 505829510, 1871569187, 3743138374, 9357845935, 18715691870]

約数ペア:

[(1, 18715691870), (2, 9357845935), (5, 3743138374), (10, 1871569187), (37, 505829510), (47, 398206210), (74, 252914755), (94, 199103105), (173, 108183190), (185, 101165902), (235, 79641242), (346, 54091595), (370, 50582951), (470, 39820621), (865, 21636638), (1730, 10818319), (1739, 10762330), (3478, 5381165), (6221, 3008470), (6401, 2923870), (8131, 2301770), (8695, 2152466), (12442, 1504235), (12802, 1461935), (16262, 1150885), (17390, 1076233), (31105, 601694), (32005, 584774), (40655, 460354), (62210, 300847), (64010, 292387), (81310, 230177)]