99780320

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{20117}}^1$

素因数の和:20163

約数の個数: 48

約数和(自身を含む): 243347328

約数和(自身を除く): 143567008

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 80, 124, 155, 160, 248, 310, 496, 620, 992, 1240, 2480, 4960, 20117, 40234, 80468, 100585, 160936, 201170, 321872, 402340, 623627, 643744, 804680, 1247254, 1609360, 2494508, 3118135, 3218720, 4989016, 6236270, 9978032, 12472540, 19956064, 24945080, 49890160, 99780320]

約数ペア:

[(1, 99780320), (2, 49890160), (4, 24945080), (5, 19956064), (8, 12472540), (10, 9978032), (16, 6236270), (20, 4989016), (31, 3218720), (32, 3118135), (40, 2494508), (62, 1609360), (80, 1247254), (124, 804680), (155, 643744), (160, 623627), (248, 402340), (310, 321872), (496, 201170), (620, 160936), (992, 100585), (1240, 80468), (2480, 40234), (4960, 20117)]