128504480

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61781}}^1$

素因数の和:61809

約数の個数: 48

約数和(自身を含む): 326950344

約数和(自身を除く): 198445864

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 260, 416, 520, 1040, 2080, 61781, 123562, 247124, 308905, 494248, 617810, 803153, 988496, 1235620, 1606306, 1976992, 2471240, 3212612, 4015765, 4942480, 6425224, 8031530, 9884960, 12850448, 16063060, 25700896, 32126120, 64252240, 128504480]

約数ペア:

[(1, 128504480), (2, 64252240), (4, 32126120), (5, 25700896), (8, 16063060), (10, 12850448), (13, 9884960), (16, 8031530), (20, 6425224), (26, 4942480), (32, 4015765), (40, 3212612), (52, 2471240), (65, 1976992), (80, 1606306), (104, 1235620), (130, 988496), (160, 803153), (208, 617810), (260, 494248), (416, 308905), (520, 247124), (1040, 123562), (2080, 61781)]