80979220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{571}}^1\times {\mathrm{1013}}^1$

素因数の和:1600

約数の個数: 48

約数和(自身を含む): 194882688

約数和(自身を除く): 113903468

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 571, 1013, 1142, 2026, 2284, 2855, 3997, 4052, 5065, 5710, 7091, 7994, 10130, 11420, 14182, 15988, 19985, 20260, 28364, 35455, 39970, 70910, 79940, 141820, 578423, 1156846, 2313692, 2892115, 4048961, 5784230, 8097922, 11568460, 16195844, 20244805, 40489610, 80979220]

約数ペア:

[(1, 80979220), (2, 40489610), (4, 20244805), (5, 16195844), (7, 11568460), (10, 8097922), (14, 5784230), (20, 4048961), (28, 2892115), (35, 2313692), (70, 1156846), (140, 578423), (571, 141820), (1013, 79940), (1142, 70910), (2026, 39970), (2284, 35455), (2855, 28364), (3997, 20260), (4052, 19985), (5065, 15988), (5710, 14182), (7091, 11420), (7994, 10130)]