12415780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{53}}^2$

素因数の和:145

約数の個数: 72

約数和(自身を含む): 30301992

約数和(自身を除く): 17886212

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 53, 65, 68, 85, 106, 130, 170, 212, 221, 260, 265, 340, 442, 530, 689, 884, 901, 1060, 1105, 1378, 1802, 2210, 2756, 2809, 3445, 3604, 4420, 4505, 5618, 6890, 9010, 11236, 11713, 13780, 14045, 18020, 23426, 28090, 36517, 46852, 47753, 56180, 58565, 73034, 95506, 117130, 146068, 182585, 191012, 234260, 238765, 365170, 477530, 620789, 730340, 955060, 1241578, 2483156, 3103945, 6207890, 12415780]

約数ペア:

[(1, 12415780), (2, 6207890), (4, 3103945), (5, 2483156), (10, 1241578), (13, 955060), (17, 730340), (20, 620789), (26, 477530), (34, 365170), (52, 238765), (53, 234260), (65, 191012), (68, 182585), (85, 146068), (106, 117130), (130, 95506), (170, 73034), (212, 58565), (221, 56180), (260, 47753), (265, 46852), (340, 36517), (442, 28090), (530, 23426), (689, 18020), (884, 14045), (901, 13780), (1060, 11713), (1105, 11236), (1378, 9010), (1802, 6890), (2210, 5618), (2756, 4505), (2809, 4420), (3445, 3604)]