284470020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{22259}}^1$

素因数の和:22345

約数の個数: 72

約数和(自身を含む): 875085120

約数和(自身を除く): 590615100

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 71, 90, 142, 180, 213, 284, 355, 426, 639, 710, 852, 1065, 1278, 1420, 2130, 2556, 3195, 4260, 6390, 12780, 22259, 44518, 66777, 89036, 111295, 133554, 200331, 222590, 267108, 333885, 400662, 445180, 667770, 801324, 1001655, 1335540, 1580389, 2003310, 3160778, 4006620, 4741167, 6321556, 7901945, 9482334, 14223501, 15803890, 18964668, 23705835, 28447002, 31607780, 47411670, 56894004, 71117505, 94823340, 142235010, 284470020]

約数ペア:

[(1, 284470020), (2, 142235010), (3, 94823340), (4, 71117505), (5, 56894004), (6, 47411670), (9, 31607780), (10, 28447002), (12, 23705835), (15, 18964668), (18, 15803890), (20, 14223501), (30, 9482334), (36, 7901945), (45, 6321556), (60, 4741167), (71, 4006620), (90, 3160778), (142, 2003310), (180, 1580389), (213, 1335540), (284, 1001655), (355, 801324), (426, 667770), (639, 445180), (710, 400662), (852, 333885), (1065, 267108), (1278, 222590), (1420, 200331), (2130, 133554), (2556, 111295), (3195, 89036), (4260, 66777), (6390, 44518), (12780, 22259)]