287240560

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{156109}}^1$

素因数の和:156145

約数の個数: 40

約数和(自身を含む): 696875040

約数和(自身を除く): 409634480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 184, 230, 368, 460, 920, 1840, 156109, 312218, 624436, 780545, 1248872, 1561090, 2497744, 3122180, 3590507, 6244360, 7181014, 12488720, 14362028, 17952535, 28724056, 35905070, 57448112, 71810140, 143620280, 287240560]

約数ペア:

[(1, 287240560), (2, 143620280), (4, 71810140), (5, 57448112), (8, 35905070), (10, 28724056), (16, 17952535), (20, 14362028), (23, 12488720), (40, 7181014), (46, 6244360), (80, 3590507), (92, 3122180), (115, 2497744), (184, 1561090), (230, 1248872), (368, 780545), (460, 624436), (920, 312218), (1840, 156109)]