211420980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{61819}}^1$

素因数の和:61853

約数の個数: 72

約数和(自身を含む): 675074400

約数和(自身を除く): 463653420

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, 61819, 123638, 185457, 247276, 309095, 370914, 556371, 618190, 741828, 927285, 1112742, 1174561, 1236380, 1854570, 2225484, 2349122, 2781855, 3523683, 3709140, 4698244, 5563710, 5872805, 7047366, 10571049, 11127420, 11745610, 14094732, 17618415, 21142098, 23491220, 35236830, 42284196, 52855245, 70473660, 105710490, 211420980]

約数ペア:

[(1, 211420980), (2, 105710490), (3, 70473660), (4, 52855245), (5, 42284196), (6, 35236830), (9, 23491220), (10, 21142098), (12, 17618415), (15, 14094732), (18, 11745610), (19, 11127420), (20, 10571049), (30, 7047366), (36, 5872805), (38, 5563710), (45, 4698244), (57, 3709140), (60, 3523683), (76, 2781855), (90, 2349122), (95, 2225484), (114, 1854570), (171, 1236380), (180, 1174561), (190, 1112742), (228, 927285), (285, 741828), (342, 618190), (380, 556371), (570, 370914), (684, 309095), (855, 247276), (1140, 185457), (1710, 123638), (3420, 61819)]