28205520

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{163}}^1$

素因数の和:289

約数の個数: 160

約数和(自身を含む): 101517312

約数和(自身を除く): 73311792

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 103, 105, 112, 120, 140, 163, 168, 206, 210, 240, 280, 309, 326, 336, 412, 420, 489, 515, 560, 618, 652, 721, 815, 824, 840, 978, 1030, 1141, 1236, 1304, 1442, 1545, 1630, 1648, 1680, 1956, 2060, 2163, 2282, 2445, 2472, 2608, 2884, 3090, 3260, 3423, 3605, 3912, 4120, 4326, 4564, 4890, 4944, 5705, 5768, 6180, 6520, 6846, 7210, 7824, 8240, 8652, 9128, 9780, 10815, 11410, 11536, 12360, 13040, 13692, 14420, 16789, 17115, 17304, 18256, 19560, 21630, 22820, 24720, 27384, 28840, 33578, 34230, 34608, 39120, 43260, 45640, 50367, 54768, 57680, 67156, 68460, 83945, 86520, 91280, 100734, 117523, 134312, 136920, 167890, 173040, 201468, 235046, 251835, 268624, 273840, 335780, 352569, 402936, 470092, 503670, 587615, 671560, 705138, 805872, 940184, 1007340, 1175230, 1343120, 1410276, 1762845, 1880368, 2014680, 2350460, 2820552, 3525690, 4029360, 4700920, 5641104, 7051380, 9401840, 14102760, 28205520]

約数ペア:

[(1, 28205520), (2, 14102760), (3, 9401840), (4, 7051380), (5, 5641104), (6, 4700920), (7, 4029360), (8, 3525690), (10, 2820552), (12, 2350460), (14, 2014680), (15, 1880368), (16, 1762845), (20, 1410276), (21, 1343120), (24, 1175230), (28, 1007340), (30, 940184), (35, 805872), (40, 705138), (42, 671560), (48, 587615), (56, 503670), (60, 470092), (70, 402936), (80, 352569), (84, 335780), (103, 273840), (105, 268624), (112, 251835), (120, 235046), (140, 201468), (163, 173040), (168, 167890), (206, 136920), (210, 134312), (240, 117523), (280, 100734), (309, 91280), (326, 86520), (336, 83945), (412, 68460), (420, 67156), (489, 57680), (515, 54768), (560, 50367), (618, 45640), (652, 43260), (721, 39120), (815, 34608), (824, 34230), (840, 33578), (978, 28840), (1030, 27384), (1141, 24720), (1236, 22820), (1304, 21630), (1442, 19560), (1545, 18256), (1630, 17304), (1648, 17115), (1680, 16789), (1956, 14420), (2060, 13692), (2163, 13040), (2282, 12360), (2445, 11536), (2472, 11410), (2608, 10815), (2884, 9780), (3090, 9128), (3260, 8652), (3423, 8240), (3605, 7824), (3912, 7210), (4120, 6846), (4326, 6520), (4564, 6180), (4890, 5768), (4944, 5705)]