65413720

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{743}}^1$

素因数の和:856

約数の個数: 64

約数和(自身を含む): 154275840

約数和(自身を除く): 88862120

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 71, 124, 142, 155, 248, 284, 310, 355, 568, 620, 710, 743, 1240, 1420, 1486, 2201, 2840, 2972, 3715, 4402, 5944, 7430, 8804, 11005, 14860, 17608, 22010, 23033, 29720, 44020, 46066, 52753, 88040, 92132, 105506, 115165, 184264, 211012, 230330, 263765, 422024, 460660, 527530, 921320, 1055060, 1635343, 2110120, 3270686, 6541372, 8176715, 13082744, 16353430, 32706860, 65413720]

約数ペア:

[(1, 65413720), (2, 32706860), (4, 16353430), (5, 13082744), (8, 8176715), (10, 6541372), (20, 3270686), (31, 2110120), (40, 1635343), (62, 1055060), (71, 921320), (124, 527530), (142, 460660), (155, 422024), (248, 263765), (284, 230330), (310, 211012), (355, 184264), (568, 115165), (620, 105506), (710, 92132), (743, 88040), (1240, 52753), (1420, 46066), (1486, 44020), (2201, 29720), (2840, 23033), (2972, 22010), (3715, 17608), (4402, 14860), (5944, 11005), (7430, 8804)]