20082012040

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{307}}^1\times {\mathrm{743}}^1$

素因数の和:1163

約数の個数: 128

約数和(自身を含む): 47516958720

約数和(自身を除く): 27434946680

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 71, 124, 142, 155, 248, 284, 307, 310, 355, 568, 614, 620, 710, 743, 1228, 1240, 1420, 1486, 1535, 2201, 2456, 2840, 2972, 3070, 3715, 4402, 5944, 6140, 7430, 8804, 9517, 11005, 12280, 14860, 17608, 19034, 21797, 22010, 23033, 29720, 38068, 43594, 44020, 46066, 47585, 52753, 76136, 87188, 88040, 92132, 95170, 105506, 108985, 115165, 174376, 184264, 190340, 211012, 217970, 228101, 230330, 263765, 380680, 422024, 435940, 456202, 460660, 527530, 675707, 871880, 912404, 921320, 1055060, 1140505, 1351414, 1635343, 1824808, 2110120, 2281010, 2702828, 3270686, 3378535, 4562020, 5405656, 6541372, 6757070, 7071131, 8176715, 9124040, 13082744, 13514140, 14142262, 16195171, 16353430, 27028280, 28284524, 32390342, 32706860, 35355655, 56569048, 64780684, 65413720, 70711310, 80975855, 129561368, 141422620, 161951710, 282845240, 323903420, 502050301, 647806840, 1004100602, 2008201204, 2510251505, 4016402408, 5020503010, 10041006020, 20082012040]

約数ペア:

[(1, 20082012040), (2, 10041006020), (4, 5020503010), (5, 4016402408), (8, 2510251505), (10, 2008201204), (20, 1004100602), (31, 647806840), (40, 502050301), (62, 323903420), (71, 282845240), (124, 161951710), (142, 141422620), (155, 129561368), (248, 80975855), (284, 70711310), (307, 65413720), (310, 64780684), (355, 56569048), (568, 35355655), (614, 32706860), (620, 32390342), (710, 28284524), (743, 27028280), (1228, 16353430), (1240, 16195171), (1420, 14142262), (1486, 13514140), (1535, 13082744), (2201, 9124040), (2456, 8176715), (2840, 7071131), (2972, 6757070), (3070, 6541372), (3715, 5405656), (4402, 4562020), (5944, 3378535), (6140, 3270686), (7430, 2702828), (8804, 2281010), (9517, 2110120), (11005, 1824808), (12280, 1635343), (14860, 1351414), (17608, 1140505), (19034, 1055060), (21797, 921320), (22010, 912404), (23033, 871880), (29720, 675707), (38068, 527530), (43594, 460660), (44020, 456202), (46066, 435940), (47585, 422024), (52753, 380680), (76136, 263765), (87188, 230330), (88040, 228101), (92132, 217970), (95170, 211012), (105506, 190340), (108985, 184264), (115165, 174376)]