78728020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1741}}^1$

素因数の和:1793

約数の個数: 96

約数和(自身を含む): 210712320

約数和(自身を除く): 131984300

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 19, 20, 28, 34, 35, 38, 68, 70, 76, 85, 95, 119, 133, 140, 170, 190, 238, 266, 323, 340, 380, 476, 532, 595, 646, 665, 1190, 1292, 1330, 1615, 1741, 2261, 2380, 2660, 3230, 3482, 4522, 6460, 6964, 8705, 9044, 11305, 12187, 17410, 22610, 24374, 29597, 33079, 34820, 45220, 48748, 59194, 60935, 66158, 118388, 121870, 132316, 147985, 165395, 207179, 231553, 243740, 295970, 330790, 414358, 463106, 562343, 591940, 661580, 828716, 926212, 1035895, 1124686, 1157765, 2071790, 2249372, 2315530, 2811715, 3936401, 4143580, 4631060, 5623430, 7872802, 11246860, 15745604, 19682005, 39364010, 78728020]

約数ペア:

[(1, 78728020), (2, 39364010), (4, 19682005), (5, 15745604), (7, 11246860), (10, 7872802), (14, 5623430), (17, 4631060), (19, 4143580), (20, 3936401), (28, 2811715), (34, 2315530), (35, 2249372), (38, 2071790), (68, 1157765), (70, 1124686), (76, 1035895), (85, 926212), (95, 828716), (119, 661580), (133, 591940), (140, 562343), (170, 463106), (190, 414358), (238, 330790), (266, 295970), (323, 243740), (340, 231553), (380, 207179), (476, 165395), (532, 147985), (595, 132316), (646, 121870), (665, 118388), (1190, 66158), (1292, 60935), (1330, 59194), (1615, 48748), (1741, 45220), (2261, 34820), (2380, 33079), (2660, 29597), (3230, 24374), (3482, 22610), (4522, 17410), (6460, 12187), (6964, 11305), (8705, 9044)]