21990442240

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^2\times {\mathrm{59}}^1\times {\mathrm{1723}}^1$

素因数の和:1829

約数の個数: 216

約数和(自身を含む): 58037908320

約数和(自身を除く): 36047466080

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 59, 64, 65, 80, 104, 118, 128, 130, 160, 169, 208, 236, 256, 260, 295, 320, 338, 416, 472, 520, 590, 640, 676, 767, 832, 845, 944, 1040, 1180, 1280, 1352, 1534, 1664, 1690, 1723, 1888, 2080, 2360, 2704, 3068, 3328, 3380, 3446, 3776, 3835, 4160, 4720, 5408, 6136, 6760, 6892, 7552, 7670, 8320, 8615, 9440, 9971, 10816, 12272, 13520, 13784, 15104, 15340, 16640, 17230, 18880, 19942, 21632, 22399, 24544, 27040, 27568, 30680, 34460, 37760, 39884, 43264, 44798, 49088, 49855, 54080, 55136, 61360, 68920, 75520, 79768, 89596, 98176, 99710, 101657, 108160, 110272, 111995, 122720, 137840, 159536, 179192, 196352, 199420, 203314, 216320, 220544, 223990, 245440, 275680, 291187, 319072, 358384, 398840, 406628, 441088, 447980, 490880, 508285, 551360, 582374, 638144, 716768, 797680, 813256, 895960, 981760, 1016570, 1102720, 1164748, 1276288, 1321541, 1433536, 1455935, 1595360, 1626512, 1791920, 2033140, 2205440, 2329496, 2552576, 2643082, 2867072, 2911870, 3190720, 3253024, 3583840, 4066280, 4658992, 5286164, 5734144, 5823740, 6381440, 6506048, 6607705, 7167680, 8132560, 9317984, 10572328, 11647480, 12762880, 13012096, 13215410, 14335360, 16265120, 17180033, 18635968, 21144656, 23294960, 26024192, 26430820, 28670720, 32530240, 34360066, 37271936, 42289312, 46589920, 52861640, 65060480, 68720132, 74543872, 84578624, 85900165, 93179840, 105723280, 130120960, 137440264, 169157248, 171800330, 186359680, 211446560, 274880528, 338314496, 343600660, 372719360, 422893120, 549761056, 687201320, 845786240, 1099522112, 1374402640, 1691572480, 2199044224, 2748805280, 4398088448, 5497610560, 10995221120, 21990442240]

約数ペア:

[(1, 21990442240), (2, 10995221120), (4, 5497610560), (5, 4398088448), (8, 2748805280), (10, 2199044224), (13, 1691572480), (16, 1374402640), (20, 1099522112), (26, 845786240), (32, 687201320), (40, 549761056), (52, 422893120), (59, 372719360), (64, 343600660), (65, 338314496), (80, 274880528), (104, 211446560), (118, 186359680), (128, 171800330), (130, 169157248), (160, 137440264), (169, 130120960), (208, 105723280), (236, 93179840), (256, 85900165), (260, 84578624), (295, 74543872), (320, 68720132), (338, 65060480), (416, 52861640), (472, 46589920), (520, 42289312), (590, 37271936), (640, 34360066), (676, 32530240), (767, 28670720), (832, 26430820), (845, 26024192), (944, 23294960), (1040, 21144656), (1180, 18635968), (1280, 17180033), (1352, 16265120), (1534, 14335360), (1664, 13215410), (1690, 13012096), (1723, 12762880), (1888, 11647480), (2080, 10572328), (2360, 9317984), (2704, 8132560), (3068, 7167680), (3328, 6607705), (3380, 6506048), (3446, 6381440), (3776, 5823740), (3835, 5734144), (4160, 5286164), (4720, 4658992), (5408, 4066280), (6136, 3583840), (6760, 3253024), (6892, 3190720), (7552, 2911870), (7670, 2867072), (8320, 2643082), (8615, 2552576), (9440, 2329496), (9971, 2205440), (10816, 2033140), (12272, 1791920), (13520, 1626512), (13784, 1595360), (15104, 1455935), (15340, 1433536), (16640, 1321541), (17230, 1276288), (18880, 1164748), (19942, 1102720), (21632, 1016570), (22399, 981760), (24544, 895960), (27040, 813256), (27568, 797680), (30680, 716768), (34460, 638144), (37760, 582374), (39884, 551360), (43264, 508285), (44798, 490880), (49088, 447980), (49855, 441088), (54080, 406628), (55136, 398840), (61360, 358384), (68920, 319072), (75520, 291187), (79768, 275680), (89596, 245440), (98176, 223990), (99710, 220544), (101657, 216320), (108160, 203314), (110272, 199420), (111995, 196352), (122720, 179192), (137840, 159536)]