83391680

素因数分解:

$2^6\times 5^1\times {\mathrm{421}}^1\times {\mathrm{619}}^1$

素因数の和:1057

約数の個数: 56

約数和(自身を含む): 199369680

約数和(自身を除く): 115978000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 421, 619, 842, 1238, 1684, 2105, 2476, 3095, 3368, 4210, 4952, 6190, 6736, 8420, 9904, 12380, 13472, 16840, 19808, 24760, 26944, 33680, 39616, 49520, 67360, 99040, 134720, 198080, 260599, 521198, 1042396, 1302995, 2084792, 2605990, 4169584, 5211980, 8339168, 10423960, 16678336, 20847920, 41695840, 83391680]

約数ペア:

[(1, 83391680), (2, 41695840), (4, 20847920), (5, 16678336), (8, 10423960), (10, 8339168), (16, 5211980), (20, 4169584), (32, 2605990), (40, 2084792), (64, 1302995), (80, 1042396), (160, 521198), (320, 260599), (421, 198080), (619, 134720), (842, 99040), (1238, 67360), (1684, 49520), (2105, 39616), (2476, 33680), (3095, 26944), (3368, 24760), (4210, 19808), (4952, 16840), (6190, 13472), (6736, 12380), (8420, 9904)]