1988551680

素因数分解:

$2^{10}\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{3499}}^1$

素因数の和:3564

約数の個数: 176

約数和(自身を含む): 6534024000

約数和(自身を除く): 4545472320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 37, 40, 48, 60, 64, 74, 80, 96, 111, 120, 128, 148, 160, 185, 192, 222, 240, 256, 296, 320, 370, 384, 444, 480, 512, 555, 592, 640, 740, 768, 888, 960, 1024, 1110, 1184, 1280, 1480, 1536, 1776, 1920, 2220, 2368, 2560, 2960, 3072, 3499, 3552, 3840, 4440, 4736, 5120, 5920, 6998, 7104, 7680, 8880, 9472, 10497, 11840, 13996, 14208, 15360, 17495, 17760, 18944, 20994, 23680, 27992, 28416, 34990, 35520, 37888, 41988, 47360, 52485, 55984, 56832, 69980, 71040, 83976, 94720, 104970, 111968, 113664, 129463, 139960, 142080, 167952, 189440, 209940, 223936, 258926, 279920, 284160, 335904, 388389, 419880, 447872, 517852, 559840, 568320, 647315, 671808, 776778, 839760, 895744, 1035704, 1119680, 1294630, 1343616, 1553556, 1679520, 1791488, 1941945, 2071408, 2239360, 2589260, 2687232, 3107112, 3359040, 3582976, 3883890, 4142816, 4478720, 5178520, 5374464, 6214224, 6718080, 7767780, 8285632, 8957440, 10357040, 10748928, 12428448, 13436160, 15535560, 16571264, 17914880, 20714080, 24856896, 26872320, 31071120, 33142528, 41428160, 49713792, 53744640, 62142240, 66285056, 82856320, 99427584, 124284480, 132570112, 165712640, 198855168, 248568960, 331425280, 397710336, 497137920, 662850560, 994275840, 1988551680]

約数ペア:

[(1, 1988551680), (2, 994275840), (3, 662850560), (4, 497137920), (5, 397710336), (6, 331425280), (8, 248568960), (10, 198855168), (12, 165712640), (15, 132570112), (16, 124284480), (20, 99427584), (24, 82856320), (30, 66285056), (32, 62142240), (37, 53744640), (40, 49713792), (48, 41428160), (60, 33142528), (64, 31071120), (74, 26872320), (80, 24856896), (96, 20714080), (111, 17914880), (120, 16571264), (128, 15535560), (148, 13436160), (160, 12428448), (185, 10748928), (192, 10357040), (222, 8957440), (240, 8285632), (256, 7767780), (296, 6718080), (320, 6214224), (370, 5374464), (384, 5178520), (444, 4478720), (480, 4142816), (512, 3883890), (555, 3582976), (592, 3359040), (640, 3107112), (740, 2687232), (768, 2589260), (888, 2239360), (960, 2071408), (1024, 1941945), (1110, 1791488), (1184, 1679520), (1280, 1553556), (1480, 1343616), (1536, 1294630), (1776, 1119680), (1920, 1035704), (2220, 895744), (2368, 839760), (2560, 776778), (2960, 671808), (3072, 647315), (3499, 568320), (3552, 559840), (3840, 517852), (4440, 447872), (4736, 419880), (5120, 388389), (5920, 335904), (6998, 284160), (7104, 279920), (7680, 258926), (8880, 223936), (9472, 209940), (10497, 189440), (11840, 167952), (13996, 142080), (14208, 139960), (15360, 129463), (17495, 113664), (17760, 111968), (18944, 104970), (20994, 94720), (23680, 83976), (27992, 71040), (28416, 69980), (34990, 56832), (35520, 55984), (37888, 52485), (41988, 47360)]