19403520

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{163}}^1$

素因数の和:218

約数の個数: 144

約数和(自身を含む): 64361472

約数和(自身を除く): 44957952

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 32, 40, 48, 60, 62, 64, 80, 93, 96, 120, 124, 128, 155, 160, 163, 186, 192, 240, 248, 256, 310, 320, 326, 372, 384, 465, 480, 489, 496, 620, 640, 652, 744, 768, 815, 930, 960, 978, 992, 1240, 1280, 1304, 1488, 1630, 1860, 1920, 1956, 1984, 2445, 2480, 2608, 2976, 3260, 3720, 3840, 3912, 3968, 4890, 4960, 5053, 5216, 5952, 6520, 7440, 7824, 7936, 9780, 9920, 10106, 10432, 11904, 13040, 14880, 15159, 15648, 19560, 19840, 20212, 20864, 23808, 25265, 26080, 29760, 30318, 31296, 39120, 39680, 40424, 41728, 50530, 52160, 59520, 60636, 62592, 75795, 78240, 80848, 101060, 104320, 119040, 121272, 125184, 151590, 156480, 161696, 202120, 208640, 242544, 303180, 312960, 323392, 404240, 485088, 606360, 625920, 646784, 808480, 970176, 1212720, 1293568, 1616960, 1940352, 2425440, 3233920, 3880704, 4850880, 6467840, 9701760, 19403520]

約数ペア:

[(1, 19403520), (2, 9701760), (3, 6467840), (4, 4850880), (5, 3880704), (6, 3233920), (8, 2425440), (10, 1940352), (12, 1616960), (15, 1293568), (16, 1212720), (20, 970176), (24, 808480), (30, 646784), (31, 625920), (32, 606360), (40, 485088), (48, 404240), (60, 323392), (62, 312960), (64, 303180), (80, 242544), (93, 208640), (96, 202120), (120, 161696), (124, 156480), (128, 151590), (155, 125184), (160, 121272), (163, 119040), (186, 104320), (192, 101060), (240, 80848), (248, 78240), (256, 75795), (310, 62592), (320, 60636), (326, 59520), (372, 52160), (384, 50530), (465, 41728), (480, 40424), (489, 39680), (496, 39120), (620, 31296), (640, 30318), (652, 29760), (744, 26080), (768, 25265), (815, 23808), (930, 20864), (960, 20212), (978, 19840), (992, 19560), (1240, 15648), (1280, 15159), (1304, 14880), (1488, 13040), (1630, 11904), (1860, 10432), (1920, 10106), (1956, 9920), (1984, 9780), (2445, 7936), (2480, 7824), (2608, 7440), (2976, 6520), (3260, 5952), (3720, 5216), (3840, 5053), (3912, 4960), (3968, 4890)]