20783520

素因数分解:

$2^5\times 3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{283}}^1$

素因数の和:324

約数の個数: 192

約数和(自身を含む): 77293440

約数和(自身を除く): 56509920

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 17, 18, 20, 24, 27, 30, 32, 34, 36, 40, 45, 48, 51, 54, 60, 68, 72, 80, 85, 90, 96, 102, 108, 120, 135, 136, 144, 153, 160, 170, 180, 204, 216, 240, 255, 270, 272, 283, 288, 306, 340, 360, 408, 432, 459, 480, 510, 540, 544, 566, 612, 680, 720, 765, 816, 849, 864, 918, 1020, 1080, 1132, 1224, 1360, 1415, 1440, 1530, 1632, 1698, 1836, 2040, 2160, 2264, 2295, 2448, 2547, 2720, 2830, 3060, 3396, 3672, 4080, 4245, 4320, 4528, 4590, 4811, 4896, 5094, 5660, 6120, 6792, 7344, 7641, 8160, 8490, 9056, 9180, 9622, 10188, 11320, 12240, 12735, 13584, 14433, 14688, 15282, 16980, 18360, 19244, 20376, 22640, 24055, 24480, 25470, 27168, 28866, 30564, 33960, 36720, 38205, 38488, 40752, 43299, 45280, 48110, 50940, 57732, 61128, 67920, 72165, 73440, 76410, 76976, 81504, 86598, 96220, 101880, 115464, 122256, 129897, 135840, 144330, 152820, 153952, 173196, 192440, 203760, 216495, 230928, 244512, 259794, 288660, 305640, 346392, 384880, 407520, 432990, 461856, 519588, 577320, 611280, 649485, 692784, 769760, 865980, 1039176, 1154640, 1222560, 1298970, 1385568, 1731960, 2078352, 2309280, 2597940, 3463920, 4156704, 5195880, 6927840, 10391760, 20783520]

約数ペア:

[(1, 20783520), (2, 10391760), (3, 6927840), (4, 5195880), (5, 4156704), (6, 3463920), (8, 2597940), (9, 2309280), (10, 2078352), (12, 1731960), (15, 1385568), (16, 1298970), (17, 1222560), (18, 1154640), (20, 1039176), (24, 865980), (27, 769760), (30, 692784), (32, 649485), (34, 611280), (36, 577320), (40, 519588), (45, 461856), (48, 432990), (51, 407520), (54, 384880), (60, 346392), (68, 305640), (72, 288660), (80, 259794), (85, 244512), (90, 230928), (96, 216495), (102, 203760), (108, 192440), (120, 173196), (135, 153952), (136, 152820), (144, 144330), (153, 135840), (160, 129897), (170, 122256), (180, 115464), (204, 101880), (216, 96220), (240, 86598), (255, 81504), (270, 76976), (272, 76410), (283, 73440), (288, 72165), (306, 67920), (340, 61128), (360, 57732), (408, 50940), (432, 48110), (459, 45280), (480, 43299), (510, 40752), (540, 38488), (544, 38205), (566, 36720), (612, 33960), (680, 30564), (720, 28866), (765, 27168), (816, 25470), (849, 24480), (864, 24055), (918, 22640), (1020, 20376), (1080, 19244), (1132, 18360), (1224, 16980), (1360, 15282), (1415, 14688), (1440, 14433), (1530, 13584), (1632, 12735), (1698, 12240), (1836, 11320), (2040, 10188), (2160, 9622), (2264, 9180), (2295, 9056), (2448, 8490), (2547, 8160), (2720, 7641), (2830, 7344), (3060, 6792), (3396, 6120), (3672, 5660), (4080, 5094), (4245, 4896), (4320, 4811), (4528, 4590)]