38439760

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{7877}}^1$

素因数の和:7951

約数の個数: 40

約数和(自身を含む): 90849096

約数和(自身を除く): 52409336

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 488, 610, 976, 1220, 2440, 4880, 7877, 15754, 31508, 39385, 63016, 78770, 126032, 157540, 315080, 480497, 630160, 960994, 1921988, 2402485, 3843976, 4804970, 7687952, 9609940, 19219880, 38439760]

約数ペア:

[(1, 38439760), (2, 19219880), (4, 9609940), (5, 7687952), (8, 4804970), (10, 3843976), (16, 2402485), (20, 1921988), (40, 960994), (61, 630160), (80, 480497), (122, 315080), (244, 157540), (305, 126032), (488, 78770), (610, 63016), (976, 39385), (1220, 31508), (2440, 15754), (4880, 7877)]