129628720

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{124643}}^1$

素因数の和:124669

約数の個数: 40

約数和(自身を含む): 324572976

約数和(自身を除く): 194944256

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 124643, 249286, 498572, 623215, 997144, 1246430, 1620359, 1994288, 2492860, 3240718, 4985720, 6481436, 8101795, 9971440, 12962872, 16203590, 25925744, 32407180, 64814360, 129628720]

約数ペア:

[(1, 129628720), (2, 64814360), (4, 32407180), (5, 25925744), (8, 16203590), (10, 12962872), (13, 9971440), (16, 8101795), (20, 6481436), (26, 4985720), (40, 3240718), (52, 2492860), (65, 1994288), (80, 1620359), (104, 1246430), (130, 997144), (208, 623215), (260, 498572), (520, 249286), (1040, 124643)]