290418440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{558497}}^1$

素因数の和:558521

約数の個数: 32

約数和(自身を含む): 703707480

約数和(自身を除く): 413289040

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 558497, 1116994, 2233988, 2792485, 4467976, 5584970, 7260461, 11169940, 14520922, 22339880, 29041844, 36302305, 58083688, 72604610, 145209220, 290418440]

約数ペア:

[(1, 290418440), (2, 145209220), (4, 72604610), (5, 58083688), (8, 36302305), (10, 29041844), (13, 22339880), (20, 14520922), (26, 11169940), (40, 7260461), (52, 5584970), (65, 4467976), (104, 2792485), (130, 2233988), (260, 1116994), (520, 558497)]