19968208130

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{563}}^1\times {\mathrm{2503}}^1$

素因数の和:3195

約数の個数: 64

約数和(自身を含む): 39147736320

約数和(自身を除く): 19179528190

約数列:

[1, 2, 5, 10, 13, 26, 65, 109, 130, 218, 545, 563, 1090, 1126, 1417, 2503, 2815, 2834, 5006, 5630, 7085, 7319, 12515, 14170, 14638, 25030, 32539, 36595, 61367, 65078, 73190, 122734, 162695, 272827, 306835, 325390, 545654, 613670, 797771, 1364135, 1409189, 1595542, 2728270, 2818378, 3546751, 3988855, 7045945, 7093502, 7977710, 14091890, 17733755, 18319457, 35467510, 36638914, 91597285, 153601601, 183194570, 307203202, 768008005, 1536016010, 1996820813, 3993641626, 9984104065, 19968208130]

約数ペア:

[(1, 19968208130), (2, 9984104065), (5, 3993641626), (10, 1996820813), (13, 1536016010), (26, 768008005), (65, 307203202), (109, 183194570), (130, 153601601), (218, 91597285), (545, 36638914), (563, 35467510), (1090, 18319457), (1126, 17733755), (1417, 14091890), (2503, 7977710), (2815, 7093502), (2834, 7045945), (5006, 3988855), (5630, 3546751), (7085, 2818378), (7319, 2728270), (12515, 1595542), (14170, 1409189), (14638, 1364135), (25030, 797771), (32539, 613670), (36595, 545654), (61367, 325390), (65078, 306835), (73190, 272827), (122734, 162695)]