490996980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{30649}}^1$

素因数の和:30753

約数の個数: 72

約数和(自身を含む): 1506141000

約数和(自身を除く): 1015144020

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 89, 90, 178, 180, 267, 356, 445, 534, 801, 890, 1068, 1335, 1602, 1780, 2670, 3204, 4005, 5340, 8010, 16020, 30649, 61298, 91947, 122596, 153245, 183894, 275841, 306490, 367788, 459735, 551682, 612980, 919470, 1103364, 1379205, 1838940, 2727761, 2758410, 5455522, 5516820, 8183283, 10911044, 13638805, 16366566, 24549849, 27277610, 32733132, 40916415, 49099698, 54555220, 81832830, 98199396, 122749245, 163665660, 245498490, 490996980]

約数ペア:

[(1, 490996980), (2, 245498490), (3, 163665660), (4, 122749245), (5, 98199396), (6, 81832830), (9, 54555220), (10, 49099698), (12, 40916415), (15, 32733132), (18, 27277610), (20, 24549849), (30, 16366566), (36, 13638805), (45, 10911044), (60, 8183283), (89, 5516820), (90, 5455522), (178, 2758410), (180, 2727761), (267, 1838940), (356, 1379205), (445, 1103364), (534, 919470), (801, 612980), (890, 551682), (1068, 459735), (1335, 367788), (1602, 306490), (1780, 275841), (2670, 183894), (3204, 153245), (4005, 122596), (5340, 91947), (8010, 61298), (16020, 30649)]