20993218480

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{601}}^1\times {\mathrm{33587}}^1$

素因数の和:34214

約数の個数: 80

約数和(自身を含む): 52652817504

約数和(自身を除く): 31659599024

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 601, 1040, 1202, 2404, 3005, 4808, 6010, 7813, 9616, 12020, 15626, 24040, 31252, 33587, 39065, 48080, 62504, 67174, 78130, 125008, 134348, 156260, 167935, 268696, 312520, 335870, 436631, 537392, 625040, 671740, 873262, 1343480, 1746524, 2183155, 2686960, 3493048, 4366310, 6986096, 8732620, 17465240, 20185787, 34930480, 40371574, 80743148, 100928935, 161486296, 201857870, 262415231, 322972592, 403715740, 524830462, 807431480, 1049660924, 1312076155, 1614862960, 2099321848, 2624152310, 4198643696, 5248304620, 10496609240, 20993218480]

約数ペア:

[(1, 20993218480), (2, 10496609240), (4, 5248304620), (5, 4198643696), (8, 2624152310), (10, 2099321848), (13, 1614862960), (16, 1312076155), (20, 1049660924), (26, 807431480), (40, 524830462), (52, 403715740), (65, 322972592), (80, 262415231), (104, 201857870), (130, 161486296), (208, 100928935), (260, 80743148), (520, 40371574), (601, 34930480), (1040, 20185787), (1202, 17465240), (2404, 8732620), (3005, 6986096), (4808, 4366310), (6010, 3493048), (7813, 2686960), (9616, 2183155), (12020, 1746524), (15626, 1343480), (24040, 873262), (31252, 671740), (33587, 625040), (39065, 537392), (48080, 436631), (62504, 335870), (67174, 312520), (78130, 268696), (125008, 167935), (134348, 156260)]