19461684080

素因数分解:

$2^4\times 5^1\times {\mathrm{229}}^1\times {\mathrm{521}}^1\times {\mathrm{2039}}^1$

素因数の和:2802

約数の個数: 80

約数和(自身を含む): 45555566400

約数和(自身を除く): 26093882320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 229, 458, 521, 916, 1042, 1145, 1832, 2039, 2084, 2290, 2605, 3664, 4078, 4168, 4580, 5210, 8156, 8336, 9160, 10195, 10420, 16312, 18320, 20390, 20840, 32624, 40780, 41680, 81560, 119309, 163120, 238618, 466931, 477236, 596545, 933862, 954472, 1062319, 1193090, 1867724, 1908944, 2124638, 2334655, 2386180, 3735448, 4249276, 4669310, 4772360, 5311595, 7470896, 8498552, 9338620, 9544720, 10623190, 16997104, 18677240, 21246380, 37354480, 42492760, 84985520, 243271051, 486542102, 973084204, 1216355255, 1946168408, 2432710510, 3892336816, 4865421020, 9730842040, 19461684080]

約数ペア:

[(1, 19461684080), (2, 9730842040), (4, 4865421020), (5, 3892336816), (8, 2432710510), (10, 1946168408), (16, 1216355255), (20, 973084204), (40, 486542102), (80, 243271051), (229, 84985520), (458, 42492760), (521, 37354480), (916, 21246380), (1042, 18677240), (1145, 16997104), (1832, 10623190), (2039, 9544720), (2084, 9338620), (2290, 8498552), (2605, 7470896), (3664, 5311595), (4078, 4772360), (4168, 4669310), (4580, 4249276), (5210, 3735448), (8156, 2386180), (8336, 2334655), (9160, 2124638), (10195, 1908944), (10420, 1867724), (16312, 1193090), (18320, 1062319), (20390, 954472), (20840, 933862), (32624, 596545), (40780, 477236), (41680, 466931), (81560, 238618), (119309, 163120)]