28486900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1289}}^1$

素因数の和:1333

約数の個数: 72

約数和(自身を含む): 70542360

約数和(自身を除く): 42055460

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 25, 26, 34, 50, 52, 65, 68, 85, 100, 130, 170, 221, 260, 325, 340, 425, 442, 650, 850, 884, 1105, 1289, 1300, 1700, 2210, 2578, 4420, 5156, 5525, 6445, 11050, 12890, 16757, 21913, 22100, 25780, 32225, 33514, 43826, 64450, 67028, 83785, 87652, 109565, 128900, 167570, 219130, 284869, 335140, 418925, 438260, 547825, 569738, 837850, 1095650, 1139476, 1424345, 1675700, 2191300, 2848690, 5697380, 7121725, 14243450, 28486900]

約数ペア:

[(1, 28486900), (2, 14243450), (4, 7121725), (5, 5697380), (10, 2848690), (13, 2191300), (17, 1675700), (20, 1424345), (25, 1139476), (26, 1095650), (34, 837850), (50, 569738), (52, 547825), (65, 438260), (68, 418925), (85, 335140), (100, 284869), (130, 219130), (170, 167570), (221, 128900), (260, 109565), (325, 87652), (340, 83785), (425, 67028), (442, 64450), (650, 43826), (850, 33514), (884, 32225), (1105, 25780), (1289, 22100), (1300, 21913), (1700, 16757), (2210, 12890), (2578, 11050), (4420, 6445), (5156, 5525)]