131296040

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{83}}^1\times {\mathrm{557}}^1$

素因数の和:722

約数の個数: 64

約数和(自身を含む): 303730560

約数和(自身を除く): 172434520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 83, 142, 166, 284, 332, 355, 415, 557, 568, 664, 710, 830, 1114, 1420, 1660, 2228, 2785, 2840, 3320, 4456, 5570, 5893, 11140, 11786, 22280, 23572, 29465, 39547, 46231, 47144, 58930, 79094, 92462, 117860, 158188, 184924, 197735, 231155, 235720, 316376, 369848, 395470, 462310, 790940, 924620, 1581880, 1849240, 3282401, 6564802, 13129604, 16412005, 26259208, 32824010, 65648020, 131296040]

約数ペア:

[(1, 131296040), (2, 65648020), (4, 32824010), (5, 26259208), (8, 16412005), (10, 13129604), (20, 6564802), (40, 3282401), (71, 1849240), (83, 1581880), (142, 924620), (166, 790940), (284, 462310), (332, 395470), (355, 369848), (415, 316376), (557, 235720), (568, 231155), (664, 197735), (710, 184924), (830, 158188), (1114, 117860), (1420, 92462), (1660, 79094), (2228, 58930), (2785, 47144), (2840, 46231), (3320, 39547), (4456, 29465), (5570, 23572), (5893, 22280), (11140, 11786)]