31081330

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{251}}^1$

素因数の和:355

約数の個数: 64

約数和(自身を含む): 67495680

約数和(自身を除く): 36414350

約数列:

[1, 2, 5, 7, 10, 14, 29, 35, 58, 61, 70, 122, 145, 203, 251, 290, 305, 406, 427, 502, 610, 854, 1015, 1255, 1757, 1769, 2030, 2135, 2510, 3514, 3538, 4270, 7279, 8785, 8845, 12383, 14558, 15311, 17570, 17690, 24766, 30622, 36395, 50953, 61915, 72790, 76555, 101906, 107177, 123830, 153110, 214354, 254765, 444019, 509530, 535885, 888038, 1071770, 2220095, 3108133, 4440190, 6216266, 15540665, 31081330]

約数ペア:

[(1, 31081330), (2, 15540665), (5, 6216266), (7, 4440190), (10, 3108133), (14, 2220095), (29, 1071770), (35, 888038), (58, 535885), (61, 509530), (70, 444019), (122, 254765), (145, 214354), (203, 153110), (251, 123830), (290, 107177), (305, 101906), (406, 76555), (427, 72790), (502, 61915), (610, 50953), (854, 36395), (1015, 30622), (1255, 24766), (1757, 17690), (1769, 17570), (2030, 15311), (2135, 14558), (2510, 12383), (3514, 8845), (3538, 8785), (4270, 7279)]