209761244

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{101}}^1\times {\mathrm{613}}^1$

素因数の和:747

約数の個数: 72

約数和(自身を含む): 466453344

約数和(自身を除く): 256692100

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 101, 121, 154, 202, 242, 308, 404, 484, 613, 707, 847, 1111, 1226, 1414, 1694, 2222, 2452, 2828, 3388, 4291, 4444, 6743, 7777, 8582, 12221, 13486, 15554, 17164, 24442, 26972, 31108, 47201, 48884, 61913, 74173, 85547, 94402, 123826, 148346, 171094, 188804, 247652, 296692, 342188, 433391, 519211, 681043, 866782, 1038422, 1362086, 1733564, 2076844, 2724172, 4767301, 7491473, 9534602, 14982946, 19069204, 29965892, 52440311, 104880622, 209761244]

約数ペア:

[(1, 209761244), (2, 104880622), (4, 52440311), (7, 29965892), (11, 19069204), (14, 14982946), (22, 9534602), (28, 7491473), (44, 4767301), (77, 2724172), (101, 2076844), (121, 1733564), (154, 1362086), (202, 1038422), (242, 866782), (308, 681043), (404, 519211), (484, 433391), (613, 342188), (707, 296692), (847, 247652), (1111, 188804), (1226, 171094), (1414, 148346), (1694, 123826), (2222, 94402), (2452, 85547), (2828, 74173), (3388, 61913), (4291, 48884), (4444, 47201), (6743, 31108), (7777, 26972), (8582, 24442), (12221, 17164), (13486, 15554)]