18467320

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{281}}^1$

素因数の和:376

約数の個数: 64

約数和(自身を含む): 43856640

約数和(自身を除く): 25389320

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 53, 62, 106, 124, 155, 212, 248, 265, 281, 310, 424, 530, 562, 620, 1060, 1124, 1240, 1405, 1643, 2120, 2248, 2810, 3286, 5620, 6572, 8215, 8711, 11240, 13144, 14893, 16430, 17422, 29786, 32860, 34844, 43555, 59572, 65720, 69688, 74465, 87110, 119144, 148930, 174220, 297860, 348440, 461683, 595720, 923366, 1846732, 2308415, 3693464, 4616830, 9233660, 18467320]

約数ペア:

[(1, 18467320), (2, 9233660), (4, 4616830), (5, 3693464), (8, 2308415), (10, 1846732), (20, 923366), (31, 595720), (40, 461683), (53, 348440), (62, 297860), (106, 174220), (124, 148930), (155, 119144), (212, 87110), (248, 74465), (265, 69688), (281, 65720), (310, 59572), (424, 43555), (530, 34844), (562, 32860), (620, 29786), (1060, 17422), (1124, 16430), (1240, 14893), (1405, 13144), (1643, 11240), (2120, 8711), (2248, 8215), (2810, 6572), (3286, 5620)]