20213000

素因数分解:

$2^3\times 5^3\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1$

素因数の和:108

約数の個数: 128

約数和(自身を含む): 53071200

約数和(自身を除く): 32858200

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 25, 29, 34, 40, 41, 50, 58, 68, 82, 85, 100, 116, 125, 136, 145, 164, 170, 200, 205, 232, 250, 290, 328, 340, 410, 425, 493, 500, 580, 680, 697, 725, 820, 850, 986, 1000, 1025, 1160, 1189, 1394, 1450, 1640, 1700, 1972, 2050, 2125, 2378, 2465, 2788, 2900, 3400, 3485, 3625, 3944, 4100, 4250, 4756, 4930, 5125, 5576, 5800, 5945, 6970, 7250, 8200, 8500, 9512, 9860, 10250, 11890, 12325, 13940, 14500, 17000, 17425, 19720, 20213, 20500, 23780, 24650, 27880, 29000, 29725, 34850, 40426, 41000, 47560, 49300, 59450, 61625, 69700, 80852, 87125, 98600, 101065, 118900, 123250, 139400, 148625, 161704, 174250, 202130, 237800, 246500, 297250, 348500, 404260, 493000, 505325, 594500, 697000, 808520, 1010650, 1189000, 2021300, 2526625, 4042600, 5053250, 10106500, 20213000]

約数ペア:

[(1, 20213000), (2, 10106500), (4, 5053250), (5, 4042600), (8, 2526625), (10, 2021300), (17, 1189000), (20, 1010650), (25, 808520), (29, 697000), (34, 594500), (40, 505325), (41, 493000), (50, 404260), (58, 348500), (68, 297250), (82, 246500), (85, 237800), (100, 202130), (116, 174250), (125, 161704), (136, 148625), (145, 139400), (164, 123250), (170, 118900), (200, 101065), (205, 98600), (232, 87125), (250, 80852), (290, 69700), (328, 61625), (340, 59450), (410, 49300), (425, 47560), (493, 41000), (500, 40426), (580, 34850), (680, 29725), (697, 29000), (725, 27880), (820, 24650), (850, 23780), (986, 20500), (1000, 20213), (1025, 19720), (1160, 17425), (1189, 17000), (1394, 14500), (1450, 13940), (1640, 12325), (1700, 11890), (1972, 10250), (2050, 9860), (2125, 9512), (2378, 8500), (2465, 8200), (2788, 7250), (2900, 6970), (3400, 5945), (3485, 5800), (3625, 5576), (3944, 5125), (4100, 4930), (4250, 4756)]