81102140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{283}}^1$

素因数の和:411

約数の個数: 96

約数和(自身を含む): 206115840

約数和(自身を除く): 125013700

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 89, 92, 115, 140, 161, 178, 230, 283, 322, 356, 445, 460, 566, 623, 644, 805, 890, 1132, 1246, 1415, 1610, 1780, 1981, 2047, 2492, 2830, 3115, 3220, 3962, 4094, 5660, 6230, 6509, 7924, 8188, 9905, 10235, 12460, 13018, 14329, 19810, 20470, 25187, 26036, 28658, 32545, 39620, 40940, 45563, 50374, 57316, 65090, 71645, 91126, 100748, 125935, 130180, 143290, 176309, 182252, 227815, 251870, 286580, 352618, 455630, 503740, 579301, 705236, 881545, 911260, 1158602, 1763090, 2317204, 2896505, 3526180, 4055107, 5793010, 8110214, 11586020, 16220428, 20275535, 40551070, 81102140]

約数ペア:

[(1, 81102140), (2, 40551070), (4, 20275535), (5, 16220428), (7, 11586020), (10, 8110214), (14, 5793010), (20, 4055107), (23, 3526180), (28, 2896505), (35, 2317204), (46, 1763090), (70, 1158602), (89, 911260), (92, 881545), (115, 705236), (140, 579301), (161, 503740), (178, 455630), (230, 352618), (283, 286580), (322, 251870), (356, 227815), (445, 182252), (460, 176309), (566, 143290), (623, 130180), (644, 125935), (805, 100748), (890, 91126), (1132, 71645), (1246, 65090), (1415, 57316), (1610, 50374), (1780, 45563), (1981, 40940), (2047, 39620), (2492, 32545), (2830, 28658), (3115, 26036), (3220, 25187), (3962, 20470), (4094, 19810), (5660, 14329), (6230, 13018), (6509, 12460), (7924, 10235), (8188, 9905)]