19709131840

素因数分解:

$2^6\times 5^1\times {\mathrm{421}}^1\times {\mathrm{146297}}^1$

素因数の和:146735

約数の個数: 56

約数和(自身を含む): 47044170072

約数和(自身を除く): 27335038232

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 421, 842, 1684, 2105, 3368, 4210, 6736, 8420, 13472, 16840, 26944, 33680, 67360, 134720, 146297, 292594, 585188, 731485, 1170376, 1462970, 2340752, 2925940, 4681504, 5851880, 9363008, 11703760, 23407520, 46815040, 61591037, 123182074, 246364148, 307955185, 492728296, 615910370, 985456592, 1231820740, 1970913184, 2463641480, 3941826368, 4927282960, 9854565920, 19709131840]

約数ペア:

[(1, 19709131840), (2, 9854565920), (4, 4927282960), (5, 3941826368), (8, 2463641480), (10, 1970913184), (16, 1231820740), (20, 985456592), (32, 615910370), (40, 492728296), (64, 307955185), (80, 246364148), (160, 123182074), (320, 61591037), (421, 46815040), (842, 23407520), (1684, 11703760), (2105, 9363008), (3368, 5851880), (4210, 4681504), (6736, 2925940), (8420, 2340752), (13472, 1462970), (16840, 1170376), (26944, 731485), (33680, 585188), (67360, 292594), (134720, 146297)]