20123572588

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{387857}}^1$

素因数の和:387994

約数の個数: 48

約数和(自身を含む): 43005695040

約数和(自身を除く): 22882122452

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 109, 119, 218, 238, 436, 476, 763, 1526, 1853, 3052, 3706, 7412, 12971, 25942, 51884, 387857, 775714, 1551428, 2714999, 5429998, 6593569, 10859996, 13187138, 26374276, 42276413, 46154983, 84552826, 92309966, 169105652, 184619932, 295934891, 591869782, 718699021, 1183739564, 1437398042, 2874796084, 5030893147, 10061786294, 20123572588]

約数ペア:

[(1, 20123572588), (2, 10061786294), (4, 5030893147), (7, 2874796084), (14, 1437398042), (17, 1183739564), (28, 718699021), (34, 591869782), (68, 295934891), (109, 184619932), (119, 169105652), (218, 92309966), (238, 84552826), (436, 46154983), (476, 42276413), (763, 26374276), (1526, 13187138), (1853, 10859996), (3052, 6593569), (3706, 5429998), (7412, 2714999), (12971, 1551428), (25942, 775714), (51884, 387857)]