15121810

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1$

素因数の和:223

約数の個数: 64

約数和(自身を含む): 31933440

約数和(自身を除く): 16811630

約数列:

[1, 2, 5, 10, 11, 22, 23, 43, 46, 55, 86, 110, 115, 139, 215, 230, 253, 278, 430, 473, 506, 695, 946, 989, 1265, 1390, 1529, 1978, 2365, 2530, 3058, 3197, 4730, 4945, 5977, 6394, 7645, 9890, 10879, 11954, 15290, 15985, 21758, 29885, 31970, 35167, 54395, 59770, 65747, 70334, 108790, 131494, 137471, 175835, 274942, 328735, 351670, 657470, 687355, 1374710, 1512181, 3024362, 7560905, 15121810]

約数ペア:

[(1, 15121810), (2, 7560905), (5, 3024362), (10, 1512181), (11, 1374710), (22, 687355), (23, 657470), (43, 351670), (46, 328735), (55, 274942), (86, 175835), (110, 137471), (115, 131494), (139, 108790), (215, 70334), (230, 65747), (253, 59770), (278, 54395), (430, 35167), (473, 31970), (506, 29885), (695, 21758), (946, 15985), (989, 15290), (1265, 11954), (1390, 10879), (1529, 9890), (1978, 7645), (2365, 6394), (2530, 5977), (3058, 4945), (3197, 4730)]