19864320

素因数分解:

$2^8\times 3^1\times 5^1\times 7^1\times {\mathrm{739}}^1$

素因数の和:770

約数の個数: 144

約数和(自身を含む): 72602880

約数和(自身を除く): 52738560

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 64, 70, 80, 84, 96, 105, 112, 120, 128, 140, 160, 168, 192, 210, 224, 240, 256, 280, 320, 336, 384, 420, 448, 480, 560, 640, 672, 739, 768, 840, 896, 960, 1120, 1280, 1344, 1478, 1680, 1792, 1920, 2217, 2240, 2688, 2956, 3360, 3695, 3840, 4434, 4480, 5173, 5376, 5912, 6720, 7390, 8868, 8960, 10346, 11085, 11824, 13440, 14780, 15519, 17736, 20692, 22170, 23648, 25865, 26880, 29560, 31038, 35472, 41384, 44340, 47296, 51730, 59120, 62076, 70944, 77595, 82768, 88680, 94592, 103460, 118240, 124152, 141888, 155190, 165536, 177360, 189184, 206920, 236480, 248304, 283776, 310380, 331072, 354720, 413840, 472960, 496608, 567552, 620760, 662144, 709440, 827680, 945920, 993216, 1241520, 1324288, 1418880, 1655360, 1986432, 2483040, 2837760, 3310720, 3972864, 4966080, 6621440, 9932160, 19864320]

約数ペア:

[(1, 19864320), (2, 9932160), (3, 6621440), (4, 4966080), (5, 3972864), (6, 3310720), (7, 2837760), (8, 2483040), (10, 1986432), (12, 1655360), (14, 1418880), (15, 1324288), (16, 1241520), (20, 993216), (21, 945920), (24, 827680), (28, 709440), (30, 662144), (32, 620760), (35, 567552), (40, 496608), (42, 472960), (48, 413840), (56, 354720), (60, 331072), (64, 310380), (70, 283776), (80, 248304), (84, 236480), (96, 206920), (105, 189184), (112, 177360), (120, 165536), (128, 155190), (140, 141888), (160, 124152), (168, 118240), (192, 103460), (210, 94592), (224, 88680), (240, 82768), (256, 77595), (280, 70944), (320, 62076), (336, 59120), (384, 51730), (420, 47296), (448, 44340), (480, 41384), (560, 35472), (640, 31038), (672, 29560), (739, 26880), (768, 25865), (840, 23648), (896, 22170), (960, 20692), (1120, 17736), (1280, 15519), (1344, 14780), (1478, 13440), (1680, 11824), (1792, 11085), (1920, 10346), (2217, 8960), (2240, 8868), (2688, 7390), (2956, 6720), (3360, 5912), (3695, 5376), (3840, 5173), (4434, 4480)]