15989457965

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{199}}^1\times {\mathrm{12239}}^1$

素因数の和:12557

約数の個数: 32

約数和(自身を含む): 20974464000

約数和(自身を除く): 4985006035

約数列:

[1, 5, 13, 65, 101, 199, 505, 995, 1313, 2587, 6565, 12239, 12935, 20099, 61195, 100495, 159107, 261287, 795535, 1236139, 1306435, 2435561, 6180695, 12177805, 16069807, 31662293, 80349035, 158311465, 245991661, 1229958305, 3197891593, 15989457965]

約数ペア:

[(1, 15989457965), (5, 3197891593), (13, 1229958305), (65, 245991661), (101, 158311465), (199, 80349035), (505, 31662293), (995, 16069807), (1313, 12177805), (2587, 6180695), (6565, 2435561), (12239, 1306435), (12935, 1236139), (20099, 795535), (61195, 261287), (100495, 159107)]