16635920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{487}}^1$

素因数の和:568

約数の個数: 80

約数和(自身を含む): 45020928

約数和(自身を除く): 28385008

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 61, 70, 80, 112, 122, 140, 244, 280, 305, 427, 487, 488, 560, 610, 854, 974, 976, 1220, 1708, 1948, 2135, 2435, 2440, 3409, 3416, 3896, 4270, 4870, 4880, 6818, 6832, 7792, 8540, 9740, 13636, 17045, 17080, 19480, 27272, 29707, 34090, 34160, 38960, 54544, 59414, 68180, 118828, 136360, 148535, 207949, 237656, 272720, 297070, 415898, 475312, 594140, 831796, 1039745, 1188280, 1663592, 2079490, 2376560, 3327184, 4158980, 8317960, 16635920]

約数ペア:

[(1, 16635920), (2, 8317960), (4, 4158980), (5, 3327184), (7, 2376560), (8, 2079490), (10, 1663592), (14, 1188280), (16, 1039745), (20, 831796), (28, 594140), (35, 475312), (40, 415898), (56, 297070), (61, 272720), (70, 237656), (80, 207949), (112, 148535), (122, 136360), (140, 118828), (244, 68180), (280, 59414), (305, 54544), (427, 38960), (487, 34160), (488, 34090), (560, 29707), (610, 27272), (854, 19480), (974, 17080), (976, 17045), (1220, 13636), (1708, 9740), (1948, 8540), (2135, 7792), (2435, 6832), (2440, 6818), (3409, 4880), (3416, 4870), (3896, 4270)]