20123657865

素因数分解:

$3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{691}}^1\times {\mathrm{17491}}^1$

素因数の和:18230

約数の個数: 48

約数和(自身を含む): 35877631296

約数和(自身を除く): 15753973431

約数列:

[1, 3, 5, 9, 15, 37, 45, 111, 185, 333, 555, 691, 1665, 2073, 3455, 6219, 10365, 17491, 25567, 31095, 52473, 76701, 87455, 127835, 157419, 230103, 262365, 383505, 647167, 787095, 1150515, 1941501, 3235835, 5824503, 9707505, 12086281, 29122515, 36258843, 60431405, 108776529, 181294215, 447192397, 543882645, 1341577191, 2235961985, 4024731573, 6707885955, 20123657865]

約数ペア:

[(1, 20123657865), (3, 6707885955), (5, 4024731573), (9, 2235961985), (15, 1341577191), (37, 543882645), (45, 447192397), (111, 181294215), (185, 108776529), (333, 60431405), (555, 36258843), (691, 29122515), (1665, 12086281), (2073, 9707505), (3455, 5824503), (6219, 3235835), (10365, 1941501), (17491, 1150515), (25567, 787095), (31095, 647167), (52473, 383505), (76701, 262365), (87455, 230103), (127835, 157419)]