215575130

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{157}}^1\times {\mathrm{197}}^1$

素因数の和:419

約数の個数: 64

約数和(自身を含む): 425712672

約数和(自身を除く): 210137542

約数列:

[1, 2, 5, 10, 17, 34, 41, 82, 85, 157, 170, 197, 205, 314, 394, 410, 697, 785, 985, 1394, 1570, 1970, 2669, 3349, 3485, 5338, 6437, 6698, 6970, 8077, 12874, 13345, 16154, 16745, 26690, 30929, 32185, 33490, 40385, 61858, 64370, 80770, 109429, 137309, 154645, 218858, 274618, 309290, 525793, 547145, 686545, 1051586, 1094290, 1268089, 1373090, 2536178, 2628965, 5257930, 6340445, 12680890, 21557513, 43115026, 107787565, 215575130]

約数ペア:

[(1, 215575130), (2, 107787565), (5, 43115026), (10, 21557513), (17, 12680890), (34, 6340445), (41, 5257930), (82, 2628965), (85, 2536178), (157, 1373090), (170, 1268089), (197, 1094290), (205, 1051586), (314, 686545), (394, 547145), (410, 525793), (697, 309290), (785, 274618), (985, 218858), (1394, 154645), (1570, 137309), (1970, 109429), (2669, 80770), (3349, 64370), (3485, 61858), (5338, 40385), (6437, 33490), (6698, 32185), (6970, 30929), (8077, 26690), (12874, 16745), (13345, 16154)]