20717220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1069}}^1$

素因数の和:1117

約数の個数: 96

約数和(自身を含む): 64713600

約数和(自身を除く): 43996380

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 19, 20, 30, 34, 38, 51, 57, 60, 68, 76, 85, 95, 102, 114, 170, 190, 204, 228, 255, 285, 323, 340, 380, 510, 570, 646, 969, 1020, 1069, 1140, 1292, 1615, 1938, 2138, 3207, 3230, 3876, 4276, 4845, 5345, 6414, 6460, 9690, 10690, 12828, 16035, 18173, 19380, 20311, 21380, 32070, 36346, 40622, 54519, 60933, 64140, 72692, 81244, 90865, 101555, 109038, 121866, 181730, 203110, 218076, 243732, 272595, 304665, 345287, 363460, 406220, 545190, 609330, 690574, 1035861, 1090380, 1218660, 1381148, 1726435, 2071722, 3452870, 4143444, 5179305, 6905740, 10358610, 20717220]

約数ペア:

[(1, 20717220), (2, 10358610), (3, 6905740), (4, 5179305), (5, 4143444), (6, 3452870), (10, 2071722), (12, 1726435), (15, 1381148), (17, 1218660), (19, 1090380), (20, 1035861), (30, 690574), (34, 609330), (38, 545190), (51, 406220), (57, 363460), (60, 345287), (68, 304665), (76, 272595), (85, 243732), (95, 218076), (102, 203110), (114, 181730), (170, 121866), (190, 109038), (204, 101555), (228, 90865), (255, 81244), (285, 72692), (323, 64140), (340, 60933), (380, 54519), (510, 40622), (570, 36346), (646, 32070), (969, 21380), (1020, 20311), (1069, 19380), (1140, 18173), (1292, 16035), (1615, 12828), (1938, 10690), (2138, 9690), (3207, 6460), (3230, 6414), (3876, 5345), (4276, 4845)]