18996842960

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1187}}^1\times {\mathrm{10529}}^1$

素因数の和:11748

約数の個数: 80

約数和(自身を含む): 46535860800

約数和(自身を除く): 27539017840

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1187, 1520, 2374, 4748, 5935, 9496, 10529, 11870, 18992, 21058, 22553, 23740, 42116, 45106, 47480, 52645, 84232, 90212, 94960, 105290, 112765, 168464, 180424, 200051, 210580, 225530, 360848, 400102, 421160, 451060, 800204, 842320, 902120, 1000255, 1600408, 1804240, 2000510, 3200816, 4001020, 8002040, 12497923, 16004080, 24995846, 49991692, 62489615, 99983384, 124979230, 199966768, 237460537, 249958460, 474921074, 499916920, 949842148, 999833840, 1187302685, 1899684296, 2374605370, 3799368592, 4749210740, 9498421480, 18996842960]

約数ペア:

[(1, 18996842960), (2, 9498421480), (4, 4749210740), (5, 3799368592), (8, 2374605370), (10, 1899684296), (16, 1187302685), (19, 999833840), (20, 949842148), (38, 499916920), (40, 474921074), (76, 249958460), (80, 237460537), (95, 199966768), (152, 124979230), (190, 99983384), (304, 62489615), (380, 49991692), (760, 24995846), (1187, 16004080), (1520, 12497923), (2374, 8002040), (4748, 4001020), (5935, 3200816), (9496, 2000510), (10529, 1804240), (11870, 1600408), (18992, 1000255), (21058, 902120), (22553, 842320), (23740, 800204), (42116, 451060), (45106, 421160), (47480, 400102), (52645, 360848), (84232, 225530), (90212, 210580), (94960, 200051), (105290, 180424), (112765, 168464)]