64618450

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{1117}}^1$

素因数の和:1231

約数の個数: 48

約数和(自身を含む): 131007240

約数和(自身を除く): 66388790

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 89, 130, 178, 325, 445, 650, 890, 1117, 1157, 2225, 2234, 2314, 4450, 5585, 5785, 11170, 11570, 14521, 27925, 28925, 29042, 55850, 57850, 72605, 99413, 145210, 198826, 363025, 497065, 726050, 994130, 1292369, 2485325, 2584738, 4970650, 6461845, 12923690, 32309225, 64618450]

約数ペア:

[(1, 64618450), (2, 32309225), (5, 12923690), (10, 6461845), (13, 4970650), (25, 2584738), (26, 2485325), (50, 1292369), (65, 994130), (89, 726050), (130, 497065), (178, 363025), (325, 198826), (445, 145210), (650, 99413), (890, 72605), (1117, 57850), (1157, 55850), (2225, 29042), (2234, 28925), (2314, 27925), (4450, 14521), (5585, 11570), (5785, 11170)]