31389224280

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{661}}^1\times {\mathrm{9203}}^1$

素因数の和:9921

約数の個数: 128

約数和(自身を含む): 96513880320

約数和(自身を除く): 65124656040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 43, 60, 86, 120, 129, 172, 215, 258, 344, 430, 516, 645, 661, 860, 1032, 1290, 1322, 1720, 1983, 2580, 2644, 3305, 3966, 5160, 5288, 6610, 7932, 9203, 9915, 13220, 15864, 18406, 19830, 26440, 27609, 28423, 36812, 39660, 46015, 55218, 56846, 73624, 79320, 85269, 92030, 110436, 113692, 138045, 142115, 170538, 184060, 220872, 227384, 276090, 284230, 341076, 368120, 395729, 426345, 552180, 568460, 682152, 791458, 852690, 1104360, 1136920, 1187187, 1582916, 1705380, 1978645, 2374374, 3165832, 3410760, 3957290, 4748748, 5935935, 6083183, 7914580, 9497496, 11871870, 12166366, 15829160, 18249549, 23743740, 24332732, 30415915, 36499098, 47487480, 48665464, 60831830, 72998196, 91247745, 121663660, 145996392, 182495490, 243327320, 261576869, 364990980, 523153738, 729981960, 784730607, 1046307476, 1307884345, 1569461214, 2092614952, 2615768690, 3138922428, 3923653035, 5231537380, 6277844856, 7847306070, 10463074760, 15694612140, 31389224280]

約数ペア:

[(1, 31389224280), (2, 15694612140), (3, 10463074760), (4, 7847306070), (5, 6277844856), (6, 5231537380), (8, 3923653035), (10, 3138922428), (12, 2615768690), (15, 2092614952), (20, 1569461214), (24, 1307884345), (30, 1046307476), (40, 784730607), (43, 729981960), (60, 523153738), (86, 364990980), (120, 261576869), (129, 243327320), (172, 182495490), (215, 145996392), (258, 121663660), (344, 91247745), (430, 72998196), (516, 60831830), (645, 48665464), (661, 47487480), (860, 36499098), (1032, 30415915), (1290, 24332732), (1322, 23743740), (1720, 18249549), (1983, 15829160), (2580, 12166366), (2644, 11871870), (3305, 9497496), (3966, 7914580), (5160, 6083183), (5288, 5935935), (6610, 4748748), (7932, 3957290), (9203, 3410760), (9915, 3165832), (13220, 2374374), (15864, 1978645), (18406, 1705380), (19830, 1582916), (26440, 1187187), (27609, 1136920), (28423, 1104360), (36812, 852690), (39660, 791458), (46015, 682152), (55218, 568460), (56846, 552180), (73624, 426345), (79320, 395729), (85269, 368120), (92030, 341076), (110436, 284230), (113692, 276090), (138045, 227384), (142115, 220872), (170538, 184060)]