18389410

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{157}}^1$

素因数の和:247

約数の個数: 64

約数和(自身を含む): 38701152

約数和(自身を除く): 20311742

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 53, 65, 85, 106, 130, 157, 170, 221, 265, 314, 442, 530, 689, 785, 901, 1105, 1378, 1570, 1802, 2041, 2210, 2669, 3445, 4082, 4505, 5338, 6890, 8321, 9010, 10205, 11713, 13345, 16642, 20410, 23426, 26690, 34697, 41605, 58565, 69394, 83210, 108173, 117130, 141457, 173485, 216346, 282914, 346970, 540865, 707285, 1081730, 1414570, 1838941, 3677882, 9194705, 18389410]

約数ペア:

[(1, 18389410), (2, 9194705), (5, 3677882), (10, 1838941), (13, 1414570), (17, 1081730), (26, 707285), (34, 540865), (53, 346970), (65, 282914), (85, 216346), (106, 173485), (130, 141457), (157, 117130), (170, 108173), (221, 83210), (265, 69394), (314, 58565), (442, 41605), (530, 34697), (689, 26690), (785, 23426), (901, 20410), (1105, 16642), (1378, 13345), (1570, 11713), (1802, 10205), (2041, 9010), (2210, 8321), (2669, 6890), (3445, 5338), (4082, 4505)]