281816028

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{661}}^1\times {\mathrm{911}}^1$

素因数の和:1595

約数の個数: 72

約数和(自身を含む): 769169856

約数和(自身を除く): 487353828

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 234, 468, 661, 911, 1322, 1822, 1983, 2644, 2733, 3644, 3966, 5466, 5949, 7932, 8199, 8593, 10932, 11843, 11898, 16398, 17186, 23686, 23796, 25779, 32796, 34372, 35529, 47372, 51558, 71058, 77337, 103116, 106587, 142116, 154674, 213174, 309348, 426348, 602171, 1204342, 1806513, 2408684, 3613026, 5419539, 7226052, 7828223, 10839078, 15656446, 21678156, 23484669, 31312892, 46969338, 70454007, 93938676, 140908014, 281816028]

約数ペア:

[(1, 281816028), (2, 140908014), (3, 93938676), (4, 70454007), (6, 46969338), (9, 31312892), (12, 23484669), (13, 21678156), (18, 15656446), (26, 10839078), (36, 7828223), (39, 7226052), (52, 5419539), (78, 3613026), (117, 2408684), (156, 1806513), (234, 1204342), (468, 602171), (661, 426348), (911, 309348), (1322, 213174), (1822, 154674), (1983, 142116), (2644, 106587), (2733, 103116), (3644, 77337), (3966, 71058), (5466, 51558), (5949, 47372), (7932, 35529), (8199, 34372), (8593, 32796), (10932, 25779), (11843, 23796), (11898, 23686), (16398, 17186)]