20825460

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{911}}^1$

素因数の和:1053

約数の個数: 72

約数和(自身を含む): 63737856

約数和(自身を除く): 42912396

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 127, 180, 254, 381, 508, 635, 762, 911, 1143, 1270, 1524, 1822, 1905, 2286, 2540, 2733, 3644, 3810, 4555, 4572, 5466, 5715, 7620, 8199, 9110, 10932, 11430, 13665, 16398, 18220, 22860, 27330, 32796, 40995, 54660, 81990, 115697, 163980, 231394, 347091, 462788, 578485, 694182, 1041273, 1156970, 1388364, 1735455, 2082546, 2313940, 3470910, 4165092, 5206365, 6941820, 10412730, 20825460]

約数ペア:

[(1, 20825460), (2, 10412730), (3, 6941820), (4, 5206365), (5, 4165092), (6, 3470910), (9, 2313940), (10, 2082546), (12, 1735455), (15, 1388364), (18, 1156970), (20, 1041273), (30, 694182), (36, 578485), (45, 462788), (60, 347091), (90, 231394), (127, 163980), (180, 115697), (254, 81990), (381, 54660), (508, 40995), (635, 32796), (762, 27330), (911, 22860), (1143, 18220), (1270, 16398), (1524, 13665), (1822, 11430), (1905, 10932), (2286, 9110), (2540, 8199), (2733, 7620), (3644, 5715), (3810, 5466), (4555, 4572)]