81870120

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{277}}^1\times {\mathrm{821}}^1$

素因数の和:1115

約数の個数: 96

約数和(自身を含む): 267363720

約数和(自身を除く): 185493600

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 277, 360, 554, 821, 831, 1108, 1385, 1642, 1662, 2216, 2463, 2493, 2770, 3284, 3324, 4105, 4155, 4926, 4986, 5540, 6568, 6648, 7389, 8210, 8310, 9852, 9972, 11080, 12315, 12465, 14778, 16420, 16620, 19704, 19944, 24630, 24930, 29556, 32840, 33240, 36945, 49260, 49860, 59112, 73890, 98520, 99720, 147780, 227417, 295560, 454834, 682251, 909668, 1137085, 1364502, 1819336, 2046753, 2274170, 2729004, 3411255, 4093506, 4548340, 5458008, 6822510, 8187012, 9096680, 10233765, 13645020, 16374024, 20467530, 27290040, 40935060, 81870120]

約数ペア:

[(1, 81870120), (2, 40935060), (3, 27290040), (4, 20467530), (5, 16374024), (6, 13645020), (8, 10233765), (9, 9096680), (10, 8187012), (12, 6822510), (15, 5458008), (18, 4548340), (20, 4093506), (24, 3411255), (30, 2729004), (36, 2274170), (40, 2046753), (45, 1819336), (60, 1364502), (72, 1137085), (90, 909668), (120, 682251), (180, 454834), (277, 295560), (360, 227417), (554, 147780), (821, 99720), (831, 98520), (1108, 73890), (1385, 59112), (1642, 49860), (1662, 49260), (2216, 36945), (2463, 33240), (2493, 32840), (2770, 29556), (3284, 24930), (3324, 24630), (4105, 19944), (4155, 19704), (4926, 16620), (4986, 16420), (5540, 14778), (6568, 12465), (6648, 12315), (7389, 11080), (8210, 9972), (8310, 9852)]