18671580

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{487}}^1$

素因数の和:576

約数の個数: 96

約数和(自身を含む): 59028480

約数和(自身を除く): 40356900

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 71, 90, 108, 135, 142, 180, 213, 270, 284, 355, 426, 487, 540, 639, 710, 852, 974, 1065, 1278, 1420, 1461, 1917, 1948, 2130, 2435, 2556, 2922, 3195, 3834, 4260, 4383, 4870, 5844, 6390, 7305, 7668, 8766, 9585, 9740, 12780, 13149, 14610, 17532, 19170, 21915, 26298, 29220, 34577, 38340, 43830, 52596, 65745, 69154, 87660, 103731, 131490, 138308, 172885, 207462, 262980, 311193, 345770, 414924, 518655, 622386, 691540, 933579, 1037310, 1244772, 1555965, 1867158, 2074620, 3111930, 3734316, 4667895, 6223860, 9335790, 18671580]

約数ペア:

[(1, 18671580), (2, 9335790), (3, 6223860), (4, 4667895), (5, 3734316), (6, 3111930), (9, 2074620), (10, 1867158), (12, 1555965), (15, 1244772), (18, 1037310), (20, 933579), (27, 691540), (30, 622386), (36, 518655), (45, 414924), (54, 345770), (60, 311193), (71, 262980), (90, 207462), (108, 172885), (135, 138308), (142, 131490), (180, 103731), (213, 87660), (270, 69154), (284, 65745), (355, 52596), (426, 43830), (487, 38340), (540, 34577), (639, 29220), (710, 26298), (852, 21915), (974, 19170), (1065, 17532), (1278, 14610), (1420, 13149), (1461, 12780), (1917, 9740), (1948, 9585), (2130, 8766), (2435, 7668), (2556, 7305), (2922, 6390), (3195, 5844), (3834, 4870), (4260, 4383)]