8623940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{809}}^1$

素因数の和:872

約数の個数: 48

約数和(自身を含む): 20003760

約数和(自身を除く): 11379820

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 41, 52, 65, 82, 130, 164, 205, 260, 410, 533, 809, 820, 1066, 1618, 2132, 2665, 3236, 4045, 5330, 8090, 10517, 10660, 16180, 21034, 33169, 42068, 52585, 66338, 105170, 132676, 165845, 210340, 331690, 431197, 663380, 862394, 1724788, 2155985, 4311970, 8623940]

約数ペア:

[(1, 8623940), (2, 4311970), (4, 2155985), (5, 1724788), (10, 862394), (13, 663380), (20, 431197), (26, 331690), (41, 210340), (52, 165845), (65, 132676), (82, 105170), (130, 66338), (164, 52585), (205, 42068), (260, 33169), (410, 21034), (533, 16180), (809, 10660), (820, 10517), (1066, 8090), (1618, 5330), (2132, 4045), (2665, 3236)]