900646720

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{163}}^1\times {\mathrm{557}}^1$

素因数の和:768

約数の個数: 112

約数和(自身を含む): 2231428608

約数和(自身を除く): 1330781888

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 155, 160, 163, 248, 310, 320, 326, 496, 557, 620, 652, 815, 992, 1114, 1240, 1304, 1630, 1984, 2228, 2480, 2608, 2785, 3260, 4456, 4960, 5053, 5216, 5570, 6520, 8912, 9920, 10106, 10432, 11140, 13040, 17267, 17824, 20212, 22280, 25265, 26080, 34534, 35648, 40424, 44560, 50530, 52160, 69068, 80848, 86335, 89120, 90791, 101060, 138136, 161696, 172670, 178240, 181582, 202120, 276272, 323392, 345340, 363164, 404240, 453955, 552544, 690680, 726328, 808480, 907910, 1105088, 1381360, 1452656, 1616960, 1815820, 2762720, 2814521, 2905312, 3631640, 5525440, 5629042, 5810624, 7263280, 11258084, 14072605, 14526560, 22516168, 28145210, 29053120, 45032336, 56290420, 90064672, 112580840, 180129344, 225161680, 450323360, 900646720]

約数ペア:

[(1, 900646720), (2, 450323360), (4, 225161680), (5, 180129344), (8, 112580840), (10, 90064672), (16, 56290420), (20, 45032336), (31, 29053120), (32, 28145210), (40, 22516168), (62, 14526560), (64, 14072605), (80, 11258084), (124, 7263280), (155, 5810624), (160, 5629042), (163, 5525440), (248, 3631640), (310, 2905312), (320, 2814521), (326, 2762720), (496, 1815820), (557, 1616960), (620, 1452656), (652, 1381360), (815, 1105088), (992, 907910), (1114, 808480), (1240, 726328), (1304, 690680), (1630, 552544), (1984, 453955), (2228, 404240), (2480, 363164), (2608, 345340), (2785, 323392), (3260, 276272), (4456, 202120), (4960, 181582), (5053, 178240), (5216, 172670), (5570, 161696), (6520, 138136), (8912, 101060), (9920, 90791), (10106, 89120), (10432, 86335), (11140, 80848), (13040, 69068), (17267, 52160), (17824, 50530), (20212, 44560), (22280, 40424), (25265, 35648), (26080, 34534)]