88901840

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{499}}^1$

素因数の和:660

約数の個数: 80

約数和(自身を含む): 220968000

約数和(自身を除く): 132066160

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 131, 136, 170, 262, 272, 340, 499, 524, 655, 680, 998, 1048, 1310, 1360, 1996, 2096, 2227, 2495, 2620, 3992, 4454, 4990, 5240, 7984, 8483, 8908, 9980, 10480, 11135, 16966, 17816, 19960, 22270, 33932, 35632, 39920, 42415, 44540, 65369, 67864, 84830, 89080, 130738, 135728, 169660, 178160, 261476, 326845, 339320, 522952, 653690, 678640, 1045904, 1111273, 1307380, 2222546, 2614760, 4445092, 5229520, 5556365, 8890184, 11112730, 17780368, 22225460, 44450920, 88901840]

約数ペア:

[(1, 88901840), (2, 44450920), (4, 22225460), (5, 17780368), (8, 11112730), (10, 8890184), (16, 5556365), (17, 5229520), (20, 4445092), (34, 2614760), (40, 2222546), (68, 1307380), (80, 1111273), (85, 1045904), (131, 678640), (136, 653690), (170, 522952), (262, 339320), (272, 326845), (340, 261476), (499, 178160), (524, 169660), (655, 135728), (680, 130738), (998, 89080), (1048, 84830), (1310, 67864), (1360, 65369), (1996, 44540), (2096, 42415), (2227, 39920), (2495, 35632), (2620, 33932), (3992, 22270), (4454, 19960), (4990, 17816), (5240, 16966), (7984, 11135), (8483, 10480), (8908, 9980)]