19619640

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{54499}}^1$

素因数の和:54516

約数の個数: 48

約数和(自身を含む): 63765000

約数和(自身を除く): 44145360

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 54499, 108998, 163497, 217996, 272495, 326994, 435992, 490491, 544990, 653988, 817485, 980982, 1089980, 1307976, 1634970, 1961964, 2179960, 2452455, 3269940, 3923928, 4904910, 6539880, 9809820, 19619640]

約数ペア:

[(1, 19619640), (2, 9809820), (3, 6539880), (4, 4904910), (5, 3923928), (6, 3269940), (8, 2452455), (9, 2179960), (10, 1961964), (12, 1634970), (15, 1307976), (18, 1089980), (20, 980982), (24, 817485), (30, 653988), (36, 544990), (40, 490491), (45, 435992), (60, 326994), (72, 272495), (90, 217996), (120, 163497), (180, 108998), (360, 54499)]