399556640

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{179}}^1\times {\mathrm{1993}}^1$

素因数の和:2194

約数の個数: 96

約数和(自身を含む): 1085374080

約数和(自身を除く): 685817440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 179, 224, 280, 358, 560, 716, 895, 1120, 1253, 1432, 1790, 1993, 2506, 2864, 3580, 3986, 5012, 5728, 6265, 7160, 7972, 9965, 10024, 12530, 13951, 14320, 15944, 19930, 20048, 25060, 27902, 28640, 31888, 39860, 40096, 50120, 55804, 63776, 69755, 79720, 100240, 111608, 139510, 159440, 200480, 223216, 279020, 318880, 356747, 446432, 558040, 713494, 1116080, 1426988, 1783735, 2232160, 2497229, 2853976, 3567470, 4994458, 5707952, 7134940, 9988916, 11415904, 12486145, 14269880, 19977832, 24972290, 28539760, 39955664, 49944580, 57079520, 79911328, 99889160, 199778320, 399556640]

約数ペア:

[(1, 399556640), (2, 199778320), (4, 99889160), (5, 79911328), (7, 57079520), (8, 49944580), (10, 39955664), (14, 28539760), (16, 24972290), (20, 19977832), (28, 14269880), (32, 12486145), (35, 11415904), (40, 9988916), (56, 7134940), (70, 5707952), (80, 4994458), (112, 3567470), (140, 2853976), (160, 2497229), (179, 2232160), (224, 1783735), (280, 1426988), (358, 1116080), (560, 713494), (716, 558040), (895, 446432), (1120, 356747), (1253, 318880), (1432, 279020), (1790, 223216), (1993, 200480), (2506, 159440), (2864, 139510), (3580, 111608), (3986, 100240), (5012, 79720), (5728, 69755), (6265, 63776), (7160, 55804), (7972, 50120), (9965, 40096), (10024, 39860), (12530, 31888), (13951, 28640), (14320, 27902), (15944, 25060), (19930, 20048)]