21190320

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1549}}^1$

素因数の和:1587

約数の個数: 120

約数和(自身を含む): 74958000

約数和(自身を除く): 53767680

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 30, 36, 38, 40, 45, 48, 57, 60, 72, 76, 80, 90, 95, 114, 120, 144, 152, 171, 180, 190, 228, 240, 285, 304, 342, 360, 380, 456, 570, 684, 720, 760, 855, 912, 1140, 1368, 1520, 1549, 1710, 2280, 2736, 3098, 3420, 4560, 4647, 6196, 6840, 7745, 9294, 12392, 13680, 13941, 15490, 18588, 23235, 24784, 27882, 29431, 30980, 37176, 46470, 55764, 58862, 61960, 69705, 74352, 88293, 92940, 111528, 117724, 123920, 139410, 147155, 176586, 185880, 223056, 235448, 264879, 278820, 294310, 353172, 371760, 441465, 470896, 529758, 557640, 588620, 706344, 882930, 1059516, 1115280, 1177240, 1324395, 1412688, 1765860, 2119032, 2354480, 2648790, 3531720, 4238064, 5297580, 7063440, 10595160, 21190320]

約数ペア:

[(1, 21190320), (2, 10595160), (3, 7063440), (4, 5297580), (5, 4238064), (6, 3531720), (8, 2648790), (9, 2354480), (10, 2119032), (12, 1765860), (15, 1412688), (16, 1324395), (18, 1177240), (19, 1115280), (20, 1059516), (24, 882930), (30, 706344), (36, 588620), (38, 557640), (40, 529758), (45, 470896), (48, 441465), (57, 371760), (60, 353172), (72, 294310), (76, 278820), (80, 264879), (90, 235448), (95, 223056), (114, 185880), (120, 176586), (144, 147155), (152, 139410), (171, 123920), (180, 117724), (190, 111528), (228, 92940), (240, 88293), (285, 74352), (304, 69705), (342, 61960), (360, 58862), (380, 55764), (456, 46470), (570, 37176), (684, 30980), (720, 29431), (760, 27882), (855, 24784), (912, 23235), (1140, 18588), (1368, 15490), (1520, 13941), (1549, 13680), (1710, 12392), (2280, 9294), (2736, 7745), (3098, 6840), (3420, 6196), (4560, 4647)]