27986840

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{109}}^1\times {\mathrm{131}}^1$

素因数の和:265

約数の個数: 96

約数和(自身を含む): 74487600

約数和(自身を除く): 46500760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 109, 131, 140, 196, 218, 245, 262, 280, 392, 436, 490, 524, 545, 655, 763, 872, 917, 980, 1048, 1090, 1310, 1526, 1834, 1960, 2180, 2620, 3052, 3668, 3815, 4360, 4585, 5240, 5341, 6104, 6419, 7336, 7630, 9170, 10682, 12838, 14279, 15260, 18340, 21364, 25676, 26705, 28558, 30520, 32095, 36680, 42728, 51352, 53410, 57116, 64190, 71395, 99953, 106820, 114232, 128380, 142790, 199906, 213640, 256760, 285580, 399812, 499765, 571160, 699671, 799624, 999530, 1399342, 1999060, 2798684, 3498355, 3998120, 5597368, 6996710, 13993420, 27986840]

約数ペア:

[(1, 27986840), (2, 13993420), (4, 6996710), (5, 5597368), (7, 3998120), (8, 3498355), (10, 2798684), (14, 1999060), (20, 1399342), (28, 999530), (35, 799624), (40, 699671), (49, 571160), (56, 499765), (70, 399812), (98, 285580), (109, 256760), (131, 213640), (140, 199906), (196, 142790), (218, 128380), (245, 114232), (262, 106820), (280, 99953), (392, 71395), (436, 64190), (490, 57116), (524, 53410), (545, 51352), (655, 42728), (763, 36680), (872, 32095), (917, 30520), (980, 28558), (1048, 26705), (1090, 25676), (1310, 21364), (1526, 18340), (1834, 15260), (1960, 14279), (2180, 12838), (2620, 10682), (3052, 9170), (3668, 7630), (3815, 7336), (4360, 6419), (4585, 6104), (5240, 5341)]