81461640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{661}}^1$

素因数の和:767

約数の個数: 128

約数和(自身を含む): 266918400

約数和(自身を除く): 185456760

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 79, 104, 120, 130, 156, 158, 195, 237, 260, 312, 316, 390, 395, 474, 520, 632, 661, 780, 790, 948, 1027, 1185, 1322, 1560, 1580, 1896, 1983, 2054, 2370, 2644, 3081, 3160, 3305, 3966, 4108, 4740, 5135, 5288, 6162, 6610, 7932, 8216, 8593, 9480, 9915, 10270, 12324, 13220, 15405, 15864, 17186, 19830, 20540, 24648, 25779, 26440, 30810, 34372, 39660, 41080, 42965, 51558, 52219, 61620, 68744, 79320, 85930, 103116, 104438, 123240, 128895, 156657, 171860, 206232, 208876, 257790, 261095, 313314, 343720, 417752, 515580, 522190, 626628, 678847, 783285, 1031160, 1044380, 1253256, 1357694, 1566570, 2036541, 2088760, 2715388, 3133140, 3394235, 4073082, 5430776, 6266280, 6788470, 8146164, 10182705, 13576940, 16292328, 20365410, 27153880, 40730820, 81461640]

約数ペア:

[(1, 81461640), (2, 40730820), (3, 27153880), (4, 20365410), (5, 16292328), (6, 13576940), (8, 10182705), (10, 8146164), (12, 6788470), (13, 6266280), (15, 5430776), (20, 4073082), (24, 3394235), (26, 3133140), (30, 2715388), (39, 2088760), (40, 2036541), (52, 1566570), (60, 1357694), (65, 1253256), (78, 1044380), (79, 1031160), (104, 783285), (120, 678847), (130, 626628), (156, 522190), (158, 515580), (195, 417752), (237, 343720), (260, 313314), (312, 261095), (316, 257790), (390, 208876), (395, 206232), (474, 171860), (520, 156657), (632, 128895), (661, 123240), (780, 104438), (790, 103116), (948, 85930), (1027, 79320), (1185, 68744), (1322, 61620), (1560, 52219), (1580, 51558), (1896, 42965), (1983, 41080), (2054, 39660), (2370, 34372), (2644, 30810), (3081, 26440), (3160, 25779), (3305, 24648), (3966, 20540), (4108, 19830), (4740, 17186), (5135, 15864), (5288, 15405), (6162, 13220), (6610, 12324), (7932, 10270), (8216, 9915), (8593, 9480)]