199573040

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{80473}}^1$

素因数の和:80517

約数の個数: 40

約数和(自身を含む): 478981248

約数和(自身を除く): 279408208

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 80473, 160946, 321892, 402365, 643784, 804730, 1287568, 1609460, 2494663, 3218920, 4989326, 6437840, 9978652, 12473315, 19957304, 24946630, 39914608, 49893260, 99786520, 199573040]

約数ペア:

[(1, 199573040), (2, 99786520), (4, 49893260), (5, 39914608), (8, 24946630), (10, 19957304), (16, 12473315), (20, 9978652), (31, 6437840), (40, 4989326), (62, 3218920), (80, 2494663), (124, 1609460), (155, 1287568), (248, 804730), (310, 643784), (496, 402365), (620, 321892), (1240, 160946), (2480, 80473)]