217867260

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{279317}}^1$

素因数の和:279342

約数の個数: 48

約数和(自身を含む): 656955936

約数和(自身を除く): 439088676

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 279317, 558634, 837951, 1117268, 1396585, 1675902, 2793170, 3351804, 3631121, 4189755, 5586340, 7262242, 8379510, 10893363, 14524484, 16759020, 18155605, 21786726, 36311210, 43573452, 54466815, 72622420, 108933630, 217867260]

約数ペア:

[(1, 217867260), (2, 108933630), (3, 72622420), (4, 54466815), (5, 43573452), (6, 36311210), (10, 21786726), (12, 18155605), (13, 16759020), (15, 14524484), (20, 10893363), (26, 8379510), (30, 7262242), (39, 5586340), (52, 4189755), (60, 3631121), (65, 3351804), (78, 2793170), (130, 1675902), (156, 1396585), (195, 1117268), (260, 837951), (390, 558634), (780, 279317)]