89871990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{4903}}^1$

素因数の和:4973

約数の個数: 64

約数和(自身を含む): 237275136

約数和(自身を除く): 147403146

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 47, 65, 78, 94, 130, 141, 195, 235, 282, 390, 470, 611, 705, 1222, 1410, 1833, 3055, 3666, 4903, 6110, 9165, 9806, 14709, 18330, 24515, 29418, 49030, 63739, 73545, 127478, 147090, 191217, 230441, 318695, 382434, 460882, 637390, 691323, 956085, 1152205, 1382646, 1912170, 2304410, 2995733, 3456615, 5991466, 6913230, 8987199, 14978665, 17974398, 29957330, 44935995, 89871990]

約数ペア:

[(1, 89871990), (2, 44935995), (3, 29957330), (5, 17974398), (6, 14978665), (10, 8987199), (13, 6913230), (15, 5991466), (26, 3456615), (30, 2995733), (39, 2304410), (47, 1912170), (65, 1382646), (78, 1152205), (94, 956085), (130, 691323), (141, 637390), (195, 460882), (235, 382434), (282, 318695), (390, 230441), (470, 191217), (611, 147090), (705, 127478), (1222, 73545), (1410, 63739), (1833, 49030), (3055, 29418), (3666, 24515), (4903, 18330), (6110, 14709), (9165, 9806)]