67780980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{19819}}^1$

素因数の和:19853

約数の個数: 72

約数和(自身を含む): 216434400

約数和(自身を除く): 148653420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 171, 180, 190, 228, 285, 342, 380, 570, 684, 855, 1140, 1710, 3420, 19819, 39638, 59457, 79276, 99095, 118914, 178371, 198190, 237828, 297285, 356742, 376561, 396380, 594570, 713484, 753122, 891855, 1129683, 1189140, 1506244, 1783710, 1882805, 2259366, 3389049, 3567420, 3765610, 4518732, 5648415, 6778098, 7531220, 11296830, 13556196, 16945245, 22593660, 33890490, 67780980]

約数ペア:

[(1, 67780980), (2, 33890490), (3, 22593660), (4, 16945245), (5, 13556196), (6, 11296830), (9, 7531220), (10, 6778098), (12, 5648415), (15, 4518732), (18, 3765610), (19, 3567420), (20, 3389049), (30, 2259366), (36, 1882805), (38, 1783710), (45, 1506244), (57, 1189140), (60, 1129683), (76, 891855), (90, 753122), (95, 713484), (114, 594570), (171, 396380), (180, 376561), (190, 356742), (228, 297285), (285, 237828), (342, 198190), (380, 178371), (570, 118914), (684, 99095), (855, 79276), (1140, 59457), (1710, 39638), (3420, 19819)]