261822340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{43783}}^1$

素因数の和:43828

約数の個数: 48

約数和(自身を含む): 617879808

約数和(自身を除く): 356057468

約数列:

[1, 2, 4, 5, 10, 13, 20, 23, 26, 46, 52, 65, 92, 115, 130, 230, 260, 299, 460, 598, 1196, 1495, 2990, 5980, 43783, 87566, 175132, 218915, 437830, 569179, 875660, 1007009, 1138358, 2014018, 2276716, 2845895, 4028036, 5035045, 5691790, 10070090, 11383580, 13091117, 20140180, 26182234, 52364468, 65455585, 130911170, 261822340]

約数ペア:

[(1, 261822340), (2, 130911170), (4, 65455585), (5, 52364468), (10, 26182234), (13, 20140180), (20, 13091117), (23, 11383580), (26, 10070090), (46, 5691790), (52, 5035045), (65, 4028036), (92, 2845895), (115, 2276716), (130, 2014018), (230, 1138358), (260, 1007009), (299, 875660), (460, 569179), (598, 437830), (1196, 218915), (1495, 175132), (2990, 87566), (5980, 43783)]