19788860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{131}}^1$

素因数の和:243

約数の個数: 96

約数和(自身を含む): 52157952

約数和(自身を除く): 32369092

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 83, 91, 130, 131, 140, 166, 182, 260, 262, 332, 364, 415, 455, 524, 581, 655, 830, 910, 917, 1079, 1162, 1310, 1660, 1703, 1820, 1834, 2158, 2324, 2620, 2905, 3406, 3668, 4316, 4585, 5395, 5810, 6812, 7553, 8515, 9170, 10790, 10873, 11620, 11921, 15106, 17030, 18340, 21580, 21746, 23842, 30212, 34060, 37765, 43492, 47684, 54365, 59605, 75530, 76111, 108730, 119210, 141349, 151060, 152222, 217460, 238420, 282698, 304444, 380555, 565396, 706745, 761110, 989443, 1413490, 1522220, 1978886, 2826980, 3957772, 4947215, 9894430, 19788860]

約数ペア:

[(1, 19788860), (2, 9894430), (4, 4947215), (5, 3957772), (7, 2826980), (10, 1978886), (13, 1522220), (14, 1413490), (20, 989443), (26, 761110), (28, 706745), (35, 565396), (52, 380555), (65, 304444), (70, 282698), (83, 238420), (91, 217460), (130, 152222), (131, 151060), (140, 141349), (166, 119210), (182, 108730), (260, 76111), (262, 75530), (332, 59605), (364, 54365), (415, 47684), (455, 43492), (524, 37765), (581, 34060), (655, 30212), (830, 23842), (910, 21746), (917, 21580), (1079, 18340), (1162, 17030), (1310, 15106), (1660, 11921), (1703, 11620), (1820, 10873), (1834, 10790), (2158, 9170), (2324, 8515), (2620, 7553), (2905, 6812), (3406, 5810), (3668, 5395), (4316, 4585)]