19896960

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{241}}^1$

素因数の和:306

約数の個数: 128

約数和(自身を含む): 65165760

約数和(自身を除く): 45268800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 43, 48, 60, 64, 80, 86, 96, 120, 128, 129, 160, 172, 192, 215, 240, 241, 258, 320, 344, 384, 430, 480, 482, 516, 640, 645, 688, 723, 860, 960, 964, 1032, 1205, 1290, 1376, 1446, 1720, 1920, 1928, 2064, 2410, 2580, 2752, 2892, 3440, 3615, 3856, 4128, 4820, 5160, 5504, 5784, 6880, 7230, 7712, 8256, 9640, 10320, 10363, 11568, 13760, 14460, 15424, 16512, 19280, 20640, 20726, 23136, 27520, 28920, 30848, 31089, 38560, 41280, 41452, 46272, 51815, 57840, 62178, 77120, 82560, 82904, 92544, 103630, 115680, 124356, 154240, 155445, 165808, 207260, 231360, 248712, 310890, 331616, 414520, 462720, 497424, 621780, 663232, 829040, 994848, 1243560, 1326464, 1658080, 1989696, 2487120, 3316160, 3979392, 4974240, 6632320, 9948480, 19896960]

約数ペア:

[(1, 19896960), (2, 9948480), (3, 6632320), (4, 4974240), (5, 3979392), (6, 3316160), (8, 2487120), (10, 1989696), (12, 1658080), (15, 1326464), (16, 1243560), (20, 994848), (24, 829040), (30, 663232), (32, 621780), (40, 497424), (43, 462720), (48, 414520), (60, 331616), (64, 310890), (80, 248712), (86, 231360), (96, 207260), (120, 165808), (128, 155445), (129, 154240), (160, 124356), (172, 115680), (192, 103630), (215, 92544), (240, 82904), (241, 82560), (258, 77120), (320, 62178), (344, 57840), (384, 51815), (430, 46272), (480, 41452), (482, 41280), (516, 38560), (640, 31089), (645, 30848), (688, 28920), (723, 27520), (860, 23136), (960, 20726), (964, 20640), (1032, 19280), (1205, 16512), (1290, 15424), (1376, 14460), (1446, 13760), (1720, 11568), (1920, 10363), (1928, 10320), (2064, 9640), (2410, 8256), (2580, 7712), (2752, 7230), (2892, 6880), (3440, 5784), (3615, 5504), (3856, 5160), (4128, 4820)]