212611840

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{389}}^1$

素因数の和:478

約数の個数: 144

約数和(自身を含む): 593087040

約数和(自身を除く): 380475200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 61, 64, 70, 80, 112, 122, 128, 140, 160, 224, 244, 256, 280, 305, 320, 389, 427, 448, 488, 560, 610, 640, 778, 854, 896, 976, 1120, 1220, 1280, 1556, 1708, 1792, 1945, 1952, 2135, 2240, 2440, 2723, 3112, 3416, 3890, 3904, 4270, 4480, 4880, 5446, 6224, 6832, 7780, 7808, 8540, 8960, 9760, 10892, 12448, 13615, 13664, 15560, 15616, 17080, 19520, 21784, 23729, 24896, 27230, 27328, 31120, 34160, 39040, 43568, 47458, 49792, 54460, 54656, 62240, 68320, 78080, 87136, 94916, 99584, 108920, 109312, 118645, 124480, 136640, 166103, 174272, 189832, 217840, 237290, 248960, 273280, 332206, 348544, 379664, 435680, 474580, 497920, 546560, 664412, 697088, 759328, 830515, 871360, 949160, 1328824, 1518656, 1661030, 1742720, 1898320, 2657648, 3037312, 3322060, 3485440, 3796640, 5315296, 6074624, 6644120, 7593280, 10630592, 13288240, 15186560, 21261184, 26576480, 30373120, 42522368, 53152960, 106305920, 212611840]

約数ペア:

[(1, 212611840), (2, 106305920), (4, 53152960), (5, 42522368), (7, 30373120), (8, 26576480), (10, 21261184), (14, 15186560), (16, 13288240), (20, 10630592), (28, 7593280), (32, 6644120), (35, 6074624), (40, 5315296), (56, 3796640), (61, 3485440), (64, 3322060), (70, 3037312), (80, 2657648), (112, 1898320), (122, 1742720), (128, 1661030), (140, 1518656), (160, 1328824), (224, 949160), (244, 871360), (256, 830515), (280, 759328), (305, 697088), (320, 664412), (389, 546560), (427, 497920), (448, 474580), (488, 435680), (560, 379664), (610, 348544), (640, 332206), (778, 273280), (854, 248960), (896, 237290), (976, 217840), (1120, 189832), (1220, 174272), (1280, 166103), (1556, 136640), (1708, 124480), (1792, 118645), (1945, 109312), (1952, 108920), (2135, 99584), (2240, 94916), (2440, 87136), (2723, 78080), (3112, 68320), (3416, 62240), (3890, 54656), (3904, 54460), (4270, 49792), (4480, 47458), (4880, 43568), (5446, 39040), (6224, 34160), (6832, 31120), (7780, 27328), (7808, 27230), (8540, 24896), (8960, 23729), (9760, 21784), (10892, 19520), (12448, 17080), (13615, 15616), (13664, 15560)]