81570960

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{277}}^1\times {\mathrm{409}}^1$

素因数の和:705

約数の個数: 120

約数和(自身を含む): 275603640

約数和(自身を除く): 194032680

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 277, 360, 409, 554, 720, 818, 831, 1108, 1227, 1385, 1636, 1662, 2045, 2216, 2454, 2493, 2770, 3272, 3324, 3681, 4090, 4155, 4432, 4908, 4986, 5540, 6135, 6544, 6648, 7362, 8180, 8310, 9816, 9972, 11080, 12270, 12465, 13296, 14724, 16360, 16620, 18405, 19632, 19944, 22160, 24540, 24930, 29448, 32720, 33240, 36810, 39888, 49080, 49860, 58896, 66480, 73620, 98160, 99720, 113293, 147240, 199440, 226586, 294480, 339879, 453172, 566465, 679758, 906344, 1019637, 1132930, 1359516, 1699395, 1812688, 2039274, 2265860, 2719032, 3398790, 4078548, 4531720, 5098185, 5438064, 6797580, 8157096, 9063440, 10196370, 13595160, 16314192, 20392740, 27190320, 40785480, 81570960]

約数ペア:

[(1, 81570960), (2, 40785480), (3, 27190320), (4, 20392740), (5, 16314192), (6, 13595160), (8, 10196370), (9, 9063440), (10, 8157096), (12, 6797580), (15, 5438064), (16, 5098185), (18, 4531720), (20, 4078548), (24, 3398790), (30, 2719032), (36, 2265860), (40, 2039274), (45, 1812688), (48, 1699395), (60, 1359516), (72, 1132930), (80, 1019637), (90, 906344), (120, 679758), (144, 566465), (180, 453172), (240, 339879), (277, 294480), (360, 226586), (409, 199440), (554, 147240), (720, 113293), (818, 99720), (831, 98160), (1108, 73620), (1227, 66480), (1385, 58896), (1636, 49860), (1662, 49080), (2045, 39888), (2216, 36810), (2454, 33240), (2493, 32720), (2770, 29448), (3272, 24930), (3324, 24540), (3681, 22160), (4090, 19944), (4155, 19632), (4432, 18405), (4908, 16620), (4986, 16360), (5540, 14724), (6135, 13296), (6544, 12465), (6648, 12270), (7362, 11080), (8180, 9972), (8310, 9816)]