321669764

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{41}}^1\times {\mathrm{157}}^1$

素因数の和:277

約数の個数: 72

約数和(自身を含む): 645775704

約数和(自身を除く): 324105940

約数列:

[1, 2, 4, 13, 26, 31, 41, 52, 62, 82, 124, 157, 164, 314, 403, 533, 628, 806, 961, 1066, 1271, 1612, 1922, 2041, 2132, 2542, 3844, 4082, 4867, 5084, 6437, 8164, 9734, 12493, 12874, 16523, 19468, 24986, 25748, 33046, 39401, 49972, 63271, 66092, 78802, 83681, 126542, 150877, 157604, 167362, 199547, 253084, 301754, 334724, 399094, 512213, 603508, 798188, 1024426, 1961401, 2048852, 2594111, 3922802, 5188222, 6185957, 7845604, 10376444, 12371914, 24743828, 80417441, 160834882, 321669764]

約数ペア:

[(1, 321669764), (2, 160834882), (4, 80417441), (13, 24743828), (26, 12371914), (31, 10376444), (41, 7845604), (52, 6185957), (62, 5188222), (82, 3922802), (124, 2594111), (157, 2048852), (164, 1961401), (314, 1024426), (403, 798188), (533, 603508), (628, 512213), (806, 399094), (961, 334724), (1066, 301754), (1271, 253084), (1612, 199547), (1922, 167362), (2041, 157604), (2132, 150877), (2542, 126542), (3844, 83681), (4082, 78802), (4867, 66092), (5084, 63271), (6437, 49972), (8164, 39401), (9734, 33046), (12493, 25748), (12874, 24986), (16523, 19468)]