20161243160

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{689509}}^1$

素因数の和:689580

約数の個数: 64

約数和(自身を含む): 49148272800

約数和(自身を除く): 28987029640

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 43, 68, 85, 86, 136, 170, 172, 215, 340, 344, 430, 680, 731, 860, 1462, 1720, 2924, 3655, 5848, 7310, 14620, 29240, 689509, 1379018, 2758036, 3447545, 5516072, 6895090, 11721653, 13790180, 23443306, 27580360, 29648887, 46886612, 58608265, 59297774, 93773224, 117216530, 118595548, 148244435, 234433060, 237191096, 296488870, 468866120, 504031079, 592977740, 1008062158, 1185955480, 2016124316, 2520155395, 4032248632, 5040310790, 10080621580, 20161243160]

約数ペア:

[(1, 20161243160), (2, 10080621580), (4, 5040310790), (5, 4032248632), (8, 2520155395), (10, 2016124316), (17, 1185955480), (20, 1008062158), (34, 592977740), (40, 504031079), (43, 468866120), (68, 296488870), (85, 237191096), (86, 234433060), (136, 148244435), (170, 118595548), (172, 117216530), (215, 93773224), (340, 59297774), (344, 58608265), (430, 46886612), (680, 29648887), (731, 27580360), (860, 23443306), (1462, 13790180), (1720, 11721653), (2924, 6895090), (3655, 5516072), (5848, 3447545), (7310, 2758036), (14620, 1379018), (29240, 689509)]