80215980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{102841}}^1$

素因数の和:102866

約数の個数: 48

約数和(自身を含む): 241884384

約数和(自身を除く): 161668404

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 102841, 205682, 308523, 411364, 514205, 617046, 1028410, 1234092, 1336933, 1542615, 2056820, 2673866, 3085230, 4010799, 5347732, 6170460, 6684665, 8021598, 13369330, 16043196, 20053995, 26738660, 40107990, 80215980]

約数ペア:

[(1, 80215980), (2, 40107990), (3, 26738660), (4, 20053995), (5, 16043196), (6, 13369330), (10, 8021598), (12, 6684665), (13, 6170460), (15, 5347732), (20, 4010799), (26, 3085230), (30, 2673866), (39, 2056820), (52, 1542615), (60, 1336933), (65, 1234092), (78, 1028410), (130, 617046), (156, 514205), (195, 411364), (260, 308523), (390, 205682), (780, 102841)]