811591780

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{151}}^1\times {\mathrm{8669}}^1$

素因数の和:8860

約数の個数: 48

約数和(自身を含む): 1771176960

約数和(自身を除く): 959585180

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 151, 155, 302, 310, 604, 620, 755, 1510, 3020, 4681, 8669, 9362, 17338, 18724, 23405, 34676, 43345, 46810, 86690, 93620, 173380, 268739, 537478, 1074956, 1309019, 1343695, 2618038, 2687390, 5236076, 5374780, 6545095, 13090190, 26180380, 40579589, 81159178, 162318356, 202897945, 405795890, 811591780]

約数ペア:

[(1, 811591780), (2, 405795890), (4, 202897945), (5, 162318356), (10, 81159178), (20, 40579589), (31, 26180380), (62, 13090190), (124, 6545095), (151, 5374780), (155, 5236076), (302, 2687390), (310, 2618038), (604, 1343695), (620, 1309019), (755, 1074956), (1510, 537478), (3020, 268739), (4681, 173380), (8669, 93620), (9362, 86690), (17338, 46810), (18724, 43345), (23405, 34676)]