81122340

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{104003}}^1$

素因数の和:104028

約数の個数: 48

約数和(自身を含む): 244617408

約数和(自身を除く): 163495068

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, 104003, 208006, 312009, 416012, 520015, 624018, 1040030, 1248036, 1352039, 1560045, 2080060, 2704078, 3120090, 4056117, 5408156, 6240180, 6760195, 8112234, 13520390, 16224468, 20280585, 27040780, 40561170, 81122340]

約数ペア:

[(1, 81122340), (2, 40561170), (3, 27040780), (4, 20280585), (5, 16224468), (6, 13520390), (10, 8112234), (12, 6760195), (13, 6240180), (15, 5408156), (20, 4056117), (26, 3120090), (30, 2704078), (39, 2080060), (52, 1560045), (60, 1352039), (65, 1248036), (78, 1040030), (130, 624018), (156, 520015), (195, 416012), (260, 312009), (390, 208006), (780, 104003)]