31251780

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{1459}}^1$

素因数の和:1498

約数の個数: 144

約数和(自身を含む): 114791040

約数和(自身を除く): 83539260

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 17, 18, 20, 21, 28, 30, 34, 35, 36, 42, 45, 51, 60, 63, 68, 70, 84, 85, 90, 102, 105, 119, 126, 140, 153, 170, 180, 204, 210, 238, 252, 255, 306, 315, 340, 357, 420, 476, 510, 595, 612, 630, 714, 765, 1020, 1071, 1190, 1260, 1428, 1459, 1530, 1785, 2142, 2380, 2918, 3060, 3570, 4284, 4377, 5355, 5836, 7140, 7295, 8754, 10213, 10710, 13131, 14590, 17508, 20426, 21420, 21885, 24803, 26262, 29180, 30639, 40852, 43770, 49606, 51065, 52524, 61278, 65655, 74409, 87540, 91917, 99212, 102130, 122556, 124015, 131310, 148818, 153195, 173621, 183834, 204260, 223227, 248030, 262620, 297636, 306390, 347242, 367668, 372045, 446454, 459585, 496060, 520863, 612780, 694484, 744090, 868105, 892908, 919170, 1041726, 1116135, 1488180, 1562589, 1736210, 1838340, 2083452, 2232270, 2604315, 3125178, 3472420, 4464540, 5208630, 6250356, 7812945, 10417260, 15625890, 31251780]

約数ペア:

[(1, 31251780), (2, 15625890), (3, 10417260), (4, 7812945), (5, 6250356), (6, 5208630), (7, 4464540), (9, 3472420), (10, 3125178), (12, 2604315), (14, 2232270), (15, 2083452), (17, 1838340), (18, 1736210), (20, 1562589), (21, 1488180), (28, 1116135), (30, 1041726), (34, 919170), (35, 892908), (36, 868105), (42, 744090), (45, 694484), (51, 612780), (60, 520863), (63, 496060), (68, 459585), (70, 446454), (84, 372045), (85, 367668), (90, 347242), (102, 306390), (105, 297636), (119, 262620), (126, 248030), (140, 223227), (153, 204260), (170, 183834), (180, 173621), (204, 153195), (210, 148818), (238, 131310), (252, 124015), (255, 122556), (306, 102130), (315, 99212), (340, 91917), (357, 87540), (420, 74409), (476, 65655), (510, 61278), (595, 52524), (612, 51065), (630, 49606), (714, 43770), (765, 40852), (1020, 30639), (1071, 29180), (1190, 26262), (1260, 24803), (1428, 21885), (1459, 21420), (1530, 20426), (1785, 17508), (2142, 14590), (2380, 13131), (2918, 10710), (3060, 10213), (3570, 8754), (4284, 7295), (4377, 7140), (5355, 5836)]