28460040

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{1993}}^1$

素因数の和:2031

約数の個数: 128

約数和(自身を含む): 103368960

約数和(自身を除く): 74908920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 17, 20, 21, 24, 28, 30, 34, 35, 40, 42, 51, 56, 60, 68, 70, 84, 85, 102, 105, 119, 120, 136, 140, 168, 170, 204, 210, 238, 255, 280, 340, 357, 408, 420, 476, 510, 595, 680, 714, 840, 952, 1020, 1190, 1428, 1785, 1993, 2040, 2380, 2856, 3570, 3986, 4760, 5979, 7140, 7972, 9965, 11958, 13951, 14280, 15944, 19930, 23916, 27902, 29895, 33881, 39860, 41853, 47832, 55804, 59790, 67762, 69755, 79720, 83706, 101643, 111608, 119580, 135524, 139510, 167412, 169405, 203286, 209265, 237167, 239160, 271048, 279020, 334824, 338810, 406572, 418530, 474334, 508215, 558040, 677620, 711501, 813144, 837060, 948668, 1016430, 1185835, 1355240, 1423002, 1674120, 1897336, 2032860, 2371670, 2846004, 3557505, 4065720, 4743340, 5692008, 7115010, 9486680, 14230020, 28460040]

約数ペア:

[(1, 28460040), (2, 14230020), (3, 9486680), (4, 7115010), (5, 5692008), (6, 4743340), (7, 4065720), (8, 3557505), (10, 2846004), (12, 2371670), (14, 2032860), (15, 1897336), (17, 1674120), (20, 1423002), (21, 1355240), (24, 1185835), (28, 1016430), (30, 948668), (34, 837060), (35, 813144), (40, 711501), (42, 677620), (51, 558040), (56, 508215), (60, 474334), (68, 418530), (70, 406572), (84, 338810), (85, 334824), (102, 279020), (105, 271048), (119, 239160), (120, 237167), (136, 209265), (140, 203286), (168, 169405), (170, 167412), (204, 139510), (210, 135524), (238, 119580), (255, 111608), (280, 101643), (340, 83706), (357, 79720), (408, 69755), (420, 67762), (476, 59790), (510, 55804), (595, 47832), (680, 41853), (714, 39860), (840, 33881), (952, 29895), (1020, 27902), (1190, 23916), (1428, 19930), (1785, 15944), (1993, 14280), (2040, 13951), (2380, 11958), (2856, 9965), (3570, 7972), (3986, 7140), (4760, 5979)]