8513180

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{239}}^1$

素因数の和:398

約数の個数: 48

約数和(自身を含む): 19474560

約数和(自身を除く): 10961380

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 137, 239, 260, 274, 478, 548, 685, 956, 1195, 1370, 1781, 2390, 2740, 3107, 3562, 4780, 6214, 7124, 8905, 12428, 15535, 17810, 31070, 32743, 35620, 62140, 65486, 130972, 163715, 327430, 425659, 654860, 851318, 1702636, 2128295, 4256590, 8513180]

約数ペア:

[(1, 8513180), (2, 4256590), (4, 2128295), (5, 1702636), (10, 851318), (13, 654860), (20, 425659), (26, 327430), (52, 163715), (65, 130972), (130, 65486), (137, 62140), (239, 35620), (260, 32743), (274, 31070), (478, 17810), (548, 15535), (685, 12428), (956, 8905), (1195, 7124), (1370, 6214), (1781, 4780), (2390, 3562), (2740, 3107)]