19744480

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{61}}^1$

素因数の和:117

約数の個数: 144

約数和(自身を含む): 57558816

約数和(自身を除く): 37814336

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 28, 32, 34, 35, 40, 56, 61, 68, 70, 80, 85, 112, 119, 122, 136, 140, 160, 170, 224, 238, 244, 272, 280, 289, 305, 340, 427, 476, 488, 544, 560, 578, 595, 610, 680, 854, 952, 976, 1037, 1120, 1156, 1190, 1220, 1360, 1445, 1708, 1904, 1952, 2023, 2074, 2135, 2312, 2380, 2440, 2720, 2890, 3416, 3808, 4046, 4148, 4270, 4624, 4760, 4880, 5185, 5780, 6832, 7259, 8092, 8296, 8540, 9248, 9520, 9760, 10115, 10370, 11560, 13664, 14518, 16184, 16592, 17080, 17629, 19040, 20230, 20740, 23120, 29036, 32368, 33184, 34160, 35258, 36295, 40460, 41480, 46240, 58072, 64736, 68320, 70516, 72590, 80920, 82960, 88145, 116144, 123403, 141032, 145180, 161840, 165920, 176290, 232288, 246806, 282064, 290360, 323680, 352580, 493612, 564128, 580720, 617015, 705160, 987224, 1161440, 1234030, 1410320, 1974448, 2468060, 2820640, 3948896, 4936120, 9872240, 19744480]

約数ペア:

[(1, 19744480), (2, 9872240), (4, 4936120), (5, 3948896), (7, 2820640), (8, 2468060), (10, 1974448), (14, 1410320), (16, 1234030), (17, 1161440), (20, 987224), (28, 705160), (32, 617015), (34, 580720), (35, 564128), (40, 493612), (56, 352580), (61, 323680), (68, 290360), (70, 282064), (80, 246806), (85, 232288), (112, 176290), (119, 165920), (122, 161840), (136, 145180), (140, 141032), (160, 123403), (170, 116144), (224, 88145), (238, 82960), (244, 80920), (272, 72590), (280, 70516), (289, 68320), (305, 64736), (340, 58072), (427, 46240), (476, 41480), (488, 40460), (544, 36295), (560, 35258), (578, 34160), (595, 33184), (610, 32368), (680, 29036), (854, 23120), (952, 20740), (976, 20230), (1037, 19040), (1120, 17629), (1156, 17080), (1190, 16592), (1220, 16184), (1360, 14518), (1445, 13664), (1708, 11560), (1904, 10370), (1952, 10115), (2023, 9760), (2074, 9520), (2135, 9248), (2312, 8540), (2380, 8296), (2440, 8092), (2720, 7259), (2890, 6832), (3416, 5780), (3808, 5185), (4046, 4880), (4148, 4760), (4270, 4624)]