272933720

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{163}}^1\times {\mathrm{1021}}^1$

素因数の和:1236

約数の個数: 64

約数和(自身を含む): 633558240

約数和(自身を除く): 360624520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 163, 164, 205, 326, 328, 410, 652, 815, 820, 1021, 1304, 1630, 1640, 2042, 3260, 4084, 5105, 6520, 6683, 8168, 10210, 13366, 20420, 26732, 33415, 40840, 41861, 53464, 66830, 83722, 133660, 166423, 167444, 209305, 267320, 332846, 334888, 418610, 665692, 832115, 837220, 1331384, 1664230, 1674440, 3328460, 6656920, 6823343, 13646686, 27293372, 34116715, 54586744, 68233430, 136466860, 272933720]

約数ペア:

[(1, 272933720), (2, 136466860), (4, 68233430), (5, 54586744), (8, 34116715), (10, 27293372), (20, 13646686), (40, 6823343), (41, 6656920), (82, 3328460), (163, 1674440), (164, 1664230), (205, 1331384), (326, 837220), (328, 832115), (410, 665692), (652, 418610), (815, 334888), (820, 332846), (1021, 267320), (1304, 209305), (1630, 167444), (1640, 166423), (2042, 133660), (3260, 83722), (4084, 66830), (5105, 53464), (6520, 41861), (6683, 40840), (8168, 33415), (10210, 26732), (13366, 20420)]