20301970

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{41}}^1\times {\mathrm{293}}^1$

素因数の和:367

約数の個数: 48

約数和(自身を含む): 40674312

約数和(自身を除く): 20372342

約数列:

[1, 2, 5, 10, 13, 26, 41, 65, 82, 130, 169, 205, 293, 338, 410, 533, 586, 845, 1066, 1465, 1690, 2665, 2930, 3809, 5330, 6929, 7618, 12013, 13858, 19045, 24026, 34645, 38090, 49517, 60065, 69290, 99034, 120130, 156169, 247585, 312338, 495170, 780845, 1561690, 2030197, 4060394, 10150985, 20301970]

約数ペア:

[(1, 20301970), (2, 10150985), (5, 4060394), (10, 2030197), (13, 1561690), (26, 780845), (41, 495170), (65, 312338), (82, 247585), (130, 156169), (169, 120130), (205, 99034), (293, 69290), (338, 60065), (410, 49517), (533, 38090), (586, 34645), (845, 24026), (1066, 19045), (1465, 13858), (1690, 12013), (2665, 7618), (2930, 6929), (3809, 5330)]