393380

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1$

素因数の和:128

約数の個数: 48

約数和(自身を含む): 952560

約数和(自身を除く): 559180

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 85, 89, 130, 170, 178, 221, 260, 340, 356, 442, 445, 884, 890, 1105, 1157, 1513, 1780, 2210, 2314, 3026, 4420, 4628, 5785, 6052, 7565, 11570, 15130, 19669, 23140, 30260, 39338, 78676, 98345, 196690, 393380]

約数ペア:

[(1, 393380), (2, 196690), (4, 98345), (5, 78676), (10, 39338), (13, 30260), (17, 23140), (20, 19669), (26, 15130), (34, 11570), (52, 7565), (65, 6052), (68, 5785), (85, 4628), (89, 4420), (130, 3026), (170, 2314), (178, 2210), (221, 1780), (260, 1513), (340, 1157), (356, 1105), (442, 890), (445, 884)]