640162680

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{231943}}^1$

素因数の和:231980

約数の個数: 64

約数和(自身を含む): 2003996160

約数和(自身を除く): 1363833480

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 40, 46, 60, 69, 92, 115, 120, 138, 184, 230, 276, 345, 460, 552, 690, 920, 1380, 2760, 231943, 463886, 695829, 927772, 1159715, 1391658, 1855544, 2319430, 2783316, 3479145, 4638860, 5334689, 5566632, 6958290, 9277720, 10669378, 13916580, 16004067, 21338756, 26673445, 27833160, 32008134, 42677512, 53346890, 64016268, 80020335, 106693780, 128032536, 160040670, 213387560, 320081340, 640162680]

約数ペア:

[(1, 640162680), (2, 320081340), (3, 213387560), (4, 160040670), (5, 128032536), (6, 106693780), (8, 80020335), (10, 64016268), (12, 53346890), (15, 42677512), (20, 32008134), (23, 27833160), (24, 26673445), (30, 21338756), (40, 16004067), (46, 13916580), (60, 10669378), (69, 9277720), (92, 6958290), (115, 5566632), (120, 5334689), (138, 4638860), (184, 3479145), (230, 2783316), (276, 2319430), (345, 1855544), (460, 1391658), (552, 1159715), (690, 927772), (920, 695829), (1380, 463886), (2760, 231943)]