19691248080

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{11720981}}^1$

素因数の和:11721004

約数の個数: 80

約数和(自身を含む): 69763284864

約数和(自身を除く): 50072036784

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 11720981, 23441962, 35162943, 46883924, 58604905, 70325886, 82046867, 93767848, 117209810, 140651772, 164093734, 175814715, 187535696, 234419620, 246140601, 281303544, 328187468, 351629430, 410234335, 468839240, 492281202, 562607088, 656374936, 703258860, 820468670, 937678480, 984562404, 1230703005, 1312749872, 1406517720, 1640937340, 1969124808, 2461406010, 2813035440, 3281874680, 3938249616, 4922812020, 6563749360, 9845624040, 19691248080]

約数ペア:

[(1, 19691248080), (2, 9845624040), (3, 6563749360), (4, 4922812020), (5, 3938249616), (6, 3281874680), (7, 2813035440), (8, 2461406010), (10, 1969124808), (12, 1640937340), (14, 1406517720), (15, 1312749872), (16, 1230703005), (20, 984562404), (21, 937678480), (24, 820468670), (28, 703258860), (30, 656374936), (35, 562607088), (40, 492281202), (42, 468839240), (48, 410234335), (56, 351629430), (60, 328187468), (70, 281303544), (80, 246140601), (84, 234419620), (105, 187535696), (112, 175814715), (120, 164093734), (140, 140651772), (168, 117209810), (210, 93767848), (240, 82046867), (280, 70325886), (336, 58604905), (420, 46883924), (560, 35162943), (840, 23441962), (1680, 11720981)]