1297789720

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{409}}^1\times {\mathrm{3449}}^1$

素因数の和:3892

約数の個数: 64

約数和(自身を含む): 3055320000

約数和(自身を除く): 1757530280

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 409, 460, 818, 920, 1636, 2045, 3272, 3449, 4090, 6898, 8180, 9407, 13796, 16360, 17245, 18814, 27592, 34490, 37628, 47035, 68980, 75256, 79327, 94070, 137960, 158654, 188140, 317308, 376280, 396635, 634616, 793270, 1410641, 1586540, 2821282, 3173080, 5642564, 7053205, 11285128, 14106410, 28212820, 32444743, 56425640, 64889486, 129778972, 162223715, 259557944, 324447430, 648894860, 1297789720]

約数ペア:

[(1, 1297789720), (2, 648894860), (4, 324447430), (5, 259557944), (8, 162223715), (10, 129778972), (20, 64889486), (23, 56425640), (40, 32444743), (46, 28212820), (92, 14106410), (115, 11285128), (184, 7053205), (230, 5642564), (409, 3173080), (460, 2821282), (818, 1586540), (920, 1410641), (1636, 793270), (2045, 634616), (3272, 396635), (3449, 376280), (4090, 317308), (6898, 188140), (8180, 158654), (9407, 137960), (13796, 94070), (16360, 79327), (17245, 75256), (18814, 68980), (27592, 47035), (34490, 37628)]