156908440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{301747}}^1$

素因数の和:301771

約数の個数: 32

約数和(自身を含む): 380202480

約数和(自身を除く): 223294040

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 301747, 603494, 1206988, 1508735, 2413976, 3017470, 3922711, 6034940, 7845422, 12069880, 15690844, 19613555, 31381688, 39227110, 78454220, 156908440]

約数ペア:

[(1, 156908440), (2, 78454220), (4, 39227110), (5, 31381688), (8, 19613555), (10, 15690844), (13, 12069880), (20, 7845422), (26, 6034940), (40, 3922711), (52, 3017470), (65, 2413976), (104, 1508735), (130, 1206988), (260, 603494), (520, 301747)]