72664280

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{139739}}^1$

素因数の和:139763

約数の個数: 32

約数和(自身を含む): 176072400

約数和(自身を除く): 103408120

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 139739, 279478, 558956, 698695, 1117912, 1397390, 1816607, 2794780, 3633214, 5589560, 7266428, 9083035, 14532856, 18166070, 36332140, 72664280]

約数ペア:

[(1, 72664280), (2, 36332140), (4, 18166070), (5, 14532856), (8, 9083035), (10, 7266428), (13, 5589560), (20, 3633214), (26, 2794780), (40, 1816607), (52, 1397390), (65, 1117912), (104, 698695), (130, 558956), (260, 279478), (520, 139739)]