81651120

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{521}}^1\times {\mathrm{653}}^1$

素因数の和:1190

約数の個数: 80

約数和(自身を含む): 253992672

約数和(自身を除く): 172341552

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 521, 653, 1042, 1306, 1563, 1959, 2084, 2605, 2612, 3126, 3265, 3918, 4168, 5210, 5224, 6252, 6530, 7815, 7836, 8336, 9795, 10420, 10448, 12504, 13060, 15630, 15672, 19590, 20840, 25008, 26120, 31260, 31344, 39180, 41680, 52240, 62520, 78360, 125040, 156720, 340213, 680426, 1020639, 1360852, 1701065, 2041278, 2721704, 3402130, 4082556, 5103195, 5443408, 6804260, 8165112, 10206390, 13608520, 16330224, 20412780, 27217040, 40825560, 81651120]

約数ペア:

[(1, 81651120), (2, 40825560), (3, 27217040), (4, 20412780), (5, 16330224), (6, 13608520), (8, 10206390), (10, 8165112), (12, 6804260), (15, 5443408), (16, 5103195), (20, 4082556), (24, 3402130), (30, 2721704), (40, 2041278), (48, 1701065), (60, 1360852), (80, 1020639), (120, 680426), (240, 340213), (521, 156720), (653, 125040), (1042, 78360), (1306, 62520), (1563, 52240), (1959, 41680), (2084, 39180), (2605, 31344), (2612, 31260), (3126, 26120), (3265, 25008), (3918, 20840), (4168, 19590), (5210, 15672), (5224, 15630), (6252, 13060), (6530, 12504), (7815, 10448), (7836, 10420), (8336, 9795)]