20673510

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1$

素因数の和:174

約数の個数: 128

約数和(自身を含む): 59996160

約数和(自身を除く): 39322650

約数列:

[1, 2, 3, 5, 6, 10, 11, 13, 15, 22, 26, 30, 33, 39, 55, 61, 65, 66, 78, 79, 110, 122, 130, 143, 158, 165, 183, 195, 237, 286, 305, 330, 366, 390, 395, 429, 474, 610, 671, 715, 790, 793, 858, 869, 915, 1027, 1185, 1342, 1430, 1586, 1738, 1830, 2013, 2054, 2145, 2370, 2379, 2607, 3081, 3355, 3965, 4026, 4290, 4345, 4758, 4819, 5135, 5214, 6162, 6710, 7930, 8690, 8723, 9638, 10065, 10270, 11297, 11895, 13035, 14457, 15405, 17446, 20130, 22594, 23790, 24095, 26070, 26169, 28914, 30810, 33891, 43615, 48190, 52338, 53009, 56485, 62647, 67782, 72285, 87230, 106018, 112970, 125294, 130845, 144570, 159027, 169455, 187941, 261690, 265045, 313235, 318054, 338910, 375882, 530090, 626470, 689117, 795135, 939705, 1378234, 1590270, 1879410, 2067351, 3445585, 4134702, 6891170, 10336755, 20673510]

約数ペア:

[(1, 20673510), (2, 10336755), (3, 6891170), (5, 4134702), (6, 3445585), (10, 2067351), (11, 1879410), (13, 1590270), (15, 1378234), (22, 939705), (26, 795135), (30, 689117), (33, 626470), (39, 530090), (55, 375882), (61, 338910), (65, 318054), (66, 313235), (78, 265045), (79, 261690), (110, 187941), (122, 169455), (130, 159027), (143, 144570), (158, 130845), (165, 125294), (183, 112970), (195, 106018), (237, 87230), (286, 72285), (305, 67782), (330, 62647), (366, 56485), (390, 53009), (395, 52338), (429, 48190), (474, 43615), (610, 33891), (671, 30810), (715, 28914), (790, 26169), (793, 26070), (858, 24095), (869, 23790), (915, 22594), (1027, 20130), (1185, 17446), (1342, 15405), (1430, 14457), (1586, 13035), (1738, 11895), (1830, 11297), (2013, 10270), (2054, 10065), (2145, 9638), (2370, 8723), (2379, 8690), (2607, 7930), (3081, 6710), (3355, 6162), (3965, 5214), (4026, 5135), (4290, 4819), (4345, 4758)]