20746830

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53197}}^1$

素因数の和:53220

約数の個数: 32

約数和(自身を含む): 53623584

約数和(自身を除く): 32876754

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 53197, 106394, 159591, 265985, 319182, 531970, 691561, 797955, 1383122, 1595910, 2074683, 3457805, 4149366, 6915610, 10373415, 20746830]

約数ペア:

[(1, 20746830), (2, 10373415), (3, 6915610), (5, 4149366), (6, 3457805), (10, 2074683), (13, 1595910), (15, 1383122), (26, 797955), (30, 691561), (39, 531970), (65, 319182), (78, 265985), (130, 159591), (195, 106394), (390, 53197)]