251988372

素因数分解:

$2^2\times 3^2\times {\mathrm{71}}^1\times {\mathrm{311}}^1\times {\mathrm{317}}^1$

素因数の和:709

約数の個数: 72

約数和(自身を含む): 650063232

約数和(自身を除く): 398074860

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 71, 142, 213, 284, 311, 317, 426, 622, 634, 639, 852, 933, 951, 1244, 1268, 1278, 1866, 1902, 2556, 2799, 2853, 3732, 3804, 5598, 5706, 11196, 11412, 22081, 22507, 44162, 45014, 66243, 67521, 88324, 90028, 98587, 132486, 135042, 197174, 198729, 202563, 264972, 270084, 295761, 394348, 397458, 405126, 591522, 794916, 810252, 887283, 1183044, 1774566, 3549132, 6999677, 13999354, 20999031, 27998708, 41998062, 62997093, 83996124, 125994186, 251988372]

約数ペア:

[(1, 251988372), (2, 125994186), (3, 83996124), (4, 62997093), (6, 41998062), (9, 27998708), (12, 20999031), (18, 13999354), (36, 6999677), (71, 3549132), (142, 1774566), (213, 1183044), (284, 887283), (311, 810252), (317, 794916), (426, 591522), (622, 405126), (634, 397458), (639, 394348), (852, 295761), (933, 270084), (951, 264972), (1244, 202563), (1268, 198729), (1278, 197174), (1866, 135042), (1902, 132486), (2556, 98587), (2799, 90028), (2853, 88324), (3732, 67521), (3804, 66243), (5598, 45014), (5706, 44162), (11196, 22507), (11412, 22081)]