90641440

素因数分解:

$2^5\times 5^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{101}}^1$

素因数の和:266

約数の個数: 96

約数和(自身を含む): 222082560

約数和(自身を除く): 131441120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 71, 79, 80, 101, 142, 158, 160, 202, 284, 316, 355, 395, 404, 505, 568, 632, 710, 790, 808, 1010, 1136, 1264, 1420, 1580, 1616, 2020, 2272, 2528, 2840, 3160, 3232, 4040, 5609, 5680, 6320, 7171, 7979, 8080, 11218, 11360, 12640, 14342, 15958, 16160, 22436, 28045, 28684, 31916, 35855, 39895, 44872, 56090, 57368, 63832, 71710, 79790, 89744, 112180, 114736, 127664, 143420, 159580, 179488, 224360, 229472, 255328, 286840, 319160, 448720, 566509, 573680, 638320, 897440, 1133018, 1147360, 1276640, 2266036, 2832545, 4532072, 5665090, 9064144, 11330180, 18128288, 22660360, 45320720, 90641440]

約数ペア:

[(1, 90641440), (2, 45320720), (4, 22660360), (5, 18128288), (8, 11330180), (10, 9064144), (16, 5665090), (20, 4532072), (32, 2832545), (40, 2266036), (71, 1276640), (79, 1147360), (80, 1133018), (101, 897440), (142, 638320), (158, 573680), (160, 566509), (202, 448720), (284, 319160), (316, 286840), (355, 255328), (395, 229472), (404, 224360), (505, 179488), (568, 159580), (632, 143420), (710, 127664), (790, 114736), (808, 112180), (1010, 89744), (1136, 79790), (1264, 71710), (1420, 63832), (1580, 57368), (1616, 56090), (2020, 44872), (2272, 39895), (2528, 35855), (2840, 31916), (3160, 28684), (3232, 28045), (4040, 22436), (5609, 16160), (5680, 15958), (6320, 14342), (7171, 12640), (7979, 11360), (8080, 11218)]