400976800

素因数分解:

$2^5\times 5^2\times 7^2\times {\mathrm{53}}^1\times {\mathrm{193}}^1$

素因数の和:280

約数の個数: 216

約数和(自身を含む): 1166198796

約数和(自身を除く): 765221996

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 32, 35, 40, 49, 50, 53, 56, 70, 80, 98, 100, 106, 112, 140, 160, 175, 193, 196, 200, 212, 224, 245, 265, 280, 350, 371, 386, 392, 400, 424, 490, 530, 560, 700, 742, 772, 784, 800, 848, 965, 980, 1060, 1120, 1225, 1325, 1351, 1400, 1484, 1544, 1568, 1696, 1855, 1930, 1960, 2120, 2450, 2597, 2650, 2702, 2800, 2968, 3088, 3710, 3860, 3920, 4240, 4825, 4900, 5194, 5300, 5404, 5600, 5936, 6176, 6755, 7420, 7720, 7840, 8480, 9275, 9457, 9650, 9800, 10229, 10388, 10600, 10808, 11872, 12985, 13510, 14840, 15440, 18550, 18914, 19300, 19600, 20458, 20776, 21200, 21616, 25970, 27020, 29680, 30880, 33775, 37100, 37828, 38600, 39200, 40916, 41552, 42400, 43232, 47285, 51145, 51940, 54040, 59360, 64925, 67550, 71603, 74200, 75656, 77200, 81832, 83104, 94570, 102290, 103880, 108080, 129850, 135100, 143206, 148400, 151312, 154400, 163664, 189140, 204580, 207760, 216160, 236425, 255725, 259700, 270200, 286412, 296800, 302624, 327328, 358015, 378280, 409160, 415520, 472850, 501221, 511450, 519400, 540400, 572824, 716030, 756560, 818320, 945700, 1002442, 1022900, 1038800, 1080800, 1145648, 1432060, 1513120, 1636640, 1790075, 1891400, 2004884, 2045800, 2077600, 2291296, 2506105, 2864120, 3580150, 3782800, 4009768, 4091600, 5012210, 5728240, 7160300, 7565600, 8019536, 8183200, 10024420, 11456480, 12530525, 14320600, 16039072, 20048840, 25061050, 28641200, 40097680, 50122100, 57282400, 80195360, 100244200, 200488400, 400976800]

約数ペア:

[(1, 400976800), (2, 200488400), (4, 100244200), (5, 80195360), (7, 57282400), (8, 50122100), (10, 40097680), (14, 28641200), (16, 25061050), (20, 20048840), (25, 16039072), (28, 14320600), (32, 12530525), (35, 11456480), (40, 10024420), (49, 8183200), (50, 8019536), (53, 7565600), (56, 7160300), (70, 5728240), (80, 5012210), (98, 4091600), (100, 4009768), (106, 3782800), (112, 3580150), (140, 2864120), (160, 2506105), (175, 2291296), (193, 2077600), (196, 2045800), (200, 2004884), (212, 1891400), (224, 1790075), (245, 1636640), (265, 1513120), (280, 1432060), (350, 1145648), (371, 1080800), (386, 1038800), (392, 1022900), (400, 1002442), (424, 945700), (490, 818320), (530, 756560), (560, 716030), (700, 572824), (742, 540400), (772, 519400), (784, 511450), (800, 501221), (848, 472850), (965, 415520), (980, 409160), (1060, 378280), (1120, 358015), (1225, 327328), (1325, 302624), (1351, 296800), (1400, 286412), (1484, 270200), (1544, 259700), (1568, 255725), (1696, 236425), (1855, 216160), (1930, 207760), (1960, 204580), (2120, 189140), (2450, 163664), (2597, 154400), (2650, 151312), (2702, 148400), (2800, 143206), (2968, 135100), (3088, 129850), (3710, 108080), (3860, 103880), (3920, 102290), (4240, 94570), (4825, 83104), (4900, 81832), (5194, 77200), (5300, 75656), (5404, 74200), (5600, 71603), (5936, 67550), (6176, 64925), (6755, 59360), (7420, 54040), (7720, 51940), (7840, 51145), (8480, 47285), (9275, 43232), (9457, 42400), (9650, 41552), (9800, 40916), (10229, 39200), (10388, 38600), (10600, 37828), (10808, 37100), (11872, 33775), (12985, 30880), (13510, 29680), (14840, 27020), (15440, 25970), (18550, 21616), (18914, 21200), (19300, 20776), (19600, 20458)]