78745940

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{13}}^1\times {\mathrm{883}}^1$

素因数の和:926

約数の個数: 96

約数和(自身を含む): 207916800

約数和(自身を除く): 129170860

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 49, 52, 65, 70, 91, 98, 130, 140, 182, 196, 245, 260, 343, 364, 455, 490, 637, 686, 883, 910, 980, 1274, 1372, 1715, 1766, 1820, 2548, 3185, 3430, 3532, 4415, 4459, 6181, 6370, 6860, 8830, 8918, 11479, 12362, 12740, 17660, 17836, 22295, 22958, 24724, 30905, 43267, 44590, 45916, 57395, 61810, 80353, 86534, 89180, 114790, 123620, 160706, 173068, 216335, 229580, 302869, 321412, 401765, 432670, 562471, 605738, 803530, 865340, 1124942, 1211476, 1514345, 1607060, 2249884, 2812355, 3028690, 3937297, 5624710, 6057380, 7874594, 11249420, 15749188, 19686485, 39372970, 78745940]

約数ペア:

[(1, 78745940), (2, 39372970), (4, 19686485), (5, 15749188), (7, 11249420), (10, 7874594), (13, 6057380), (14, 5624710), (20, 3937297), (26, 3028690), (28, 2812355), (35, 2249884), (49, 1607060), (52, 1514345), (65, 1211476), (70, 1124942), (91, 865340), (98, 803530), (130, 605738), (140, 562471), (182, 432670), (196, 401765), (245, 321412), (260, 302869), (343, 229580), (364, 216335), (455, 173068), (490, 160706), (637, 123620), (686, 114790), (883, 89180), (910, 86534), (980, 80353), (1274, 61810), (1372, 57395), (1715, 45916), (1766, 44590), (1820, 43267), (2548, 30905), (3185, 24724), (3430, 22958), (3532, 22295), (4415, 17836), (4459, 17660), (6181, 12740), (6370, 12362), (6860, 11479), (8830, 8918)]