79840280

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{8081}}^1$

素因数の和:8124

約数の個数: 64

約数和(自身を含む): 203666400

約数和(自身を除く): 123826120

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 26, 38, 40, 52, 65, 76, 95, 104, 130, 152, 190, 247, 260, 380, 494, 520, 760, 988, 1235, 1976, 2470, 4940, 8081, 9880, 16162, 32324, 40405, 64648, 80810, 105053, 153539, 161620, 210106, 307078, 323240, 420212, 525265, 614156, 767695, 840424, 1050530, 1228312, 1535390, 1996007, 2101060, 3070780, 3992014, 4202120, 6141560, 7984028, 9980035, 15968056, 19960070, 39920140, 79840280]

約数ペア:

[(1, 79840280), (2, 39920140), (4, 19960070), (5, 15968056), (8, 9980035), (10, 7984028), (13, 6141560), (19, 4202120), (20, 3992014), (26, 3070780), (38, 2101060), (40, 1996007), (52, 1535390), (65, 1228312), (76, 1050530), (95, 840424), (104, 767695), (130, 614156), (152, 525265), (190, 420212), (247, 323240), (260, 307078), (380, 210106), (494, 161620), (520, 153539), (760, 105053), (988, 80810), (1235, 64648), (1976, 40405), (2470, 32324), (4940, 16162), (8081, 9880)]