20556037970

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{673}}^1\times {\mathrm{4999}}^1$

素因数の和:5739

約数の個数: 64

約数和(自身を含む): 40763520000

約数和(自身を除く): 20207482030

約数列:

[1, 2, 5, 10, 13, 26, 47, 65, 94, 130, 235, 470, 611, 673, 1222, 1346, 3055, 3365, 4999, 6110, 6730, 8749, 9998, 17498, 24995, 31631, 43745, 49990, 63262, 64987, 87490, 129974, 158155, 234953, 316310, 324935, 411203, 469906, 649870, 822406, 1174765, 2056015, 2349530, 3054389, 3364327, 4112030, 6108778, 6728654, 15271945, 16821635, 30543890, 33643270, 43736251, 87472502, 158123369, 218681255, 316246738, 437362510, 790616845, 1581233690, 2055603797, 4111207594, 10278018985, 20556037970]

約数ペア:

[(1, 20556037970), (2, 10278018985), (5, 4111207594), (10, 2055603797), (13, 1581233690), (26, 790616845), (47, 437362510), (65, 316246738), (94, 218681255), (130, 158123369), (235, 87472502), (470, 43736251), (611, 33643270), (673, 30543890), (1222, 16821635), (1346, 15271945), (3055, 6728654), (3365, 6108778), (4999, 4112030), (6110, 3364327), (6730, 3054389), (8749, 2349530), (9998, 2056015), (17498, 1174765), (24995, 822406), (31631, 649870), (43745, 469906), (49990, 411203), (63262, 324935), (64987, 316310), (87490, 234953), (129974, 158155)]