80811380

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{4639}}^1$

素因数の和:4728

約数の個数: 48

約数和(自身を含む): 185525760

約数和(自身を除く): 104714380

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 67, 130, 134, 260, 268, 335, 670, 871, 1340, 1742, 3484, 4355, 4639, 8710, 9278, 17420, 18556, 23195, 46390, 60307, 92780, 120614, 241228, 301535, 310813, 603070, 621626, 1206140, 1243252, 1554065, 3108130, 4040569, 6216260, 8081138, 16162276, 20202845, 40405690, 80811380]

約数ペア:

[(1, 80811380), (2, 40405690), (4, 20202845), (5, 16162276), (10, 8081138), (13, 6216260), (20, 4040569), (26, 3108130), (52, 1554065), (65, 1243252), (67, 1206140), (130, 621626), (134, 603070), (260, 310813), (268, 301535), (335, 241228), (670, 120614), (871, 92780), (1340, 60307), (1742, 46390), (3484, 23195), (4355, 18556), (4639, 17420), (8710, 9278)]