87464240

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{17923}}^1$

素因数の和:17997

約数の個数: 40

約数和(自身を含む): 206699568

約数和(自身を除く): 119235328

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 488, 610, 976, 1220, 2440, 4880, 17923, 35846, 71692, 89615, 143384, 179230, 286768, 358460, 716920, 1093303, 1433840, 2186606, 4373212, 5466515, 8746424, 10933030, 17492848, 21866060, 43732120, 87464240]

約数ペア:

[(1, 87464240), (2, 43732120), (4, 21866060), (5, 17492848), (8, 10933030), (10, 8746424), (16, 5466515), (20, 4373212), (40, 2186606), (61, 1433840), (80, 1093303), (122, 716920), (244, 358460), (305, 286768), (488, 179230), (610, 143384), (976, 89615), (1220, 71692), (2440, 35846), (4880, 17923)]