19260780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{379}}^1$

素因数の和:420

約数の個数: 144

約数和(自身を含む): 67925760

約数和(自身を除く): 48664980

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 11, 12, 14, 15, 20, 21, 22, 28, 30, 33, 35, 42, 44, 55, 60, 66, 70, 77, 84, 105, 110, 121, 132, 140, 154, 165, 210, 220, 231, 242, 308, 330, 363, 379, 385, 420, 462, 484, 605, 660, 726, 758, 770, 847, 924, 1137, 1155, 1210, 1452, 1516, 1540, 1694, 1815, 1895, 2274, 2310, 2420, 2541, 2653, 3388, 3630, 3790, 4169, 4235, 4548, 4620, 5082, 5306, 5685, 7260, 7580, 7959, 8338, 8470, 10164, 10612, 11370, 12507, 12705, 13265, 15918, 16676, 16940, 20845, 22740, 25014, 25410, 26530, 29183, 31836, 39795, 41690, 45859, 50028, 50820, 53060, 58366, 62535, 79590, 83380, 87549, 91718, 116732, 125070, 137577, 145915, 159180, 175098, 183436, 229295, 250140, 275154, 291830, 321013, 350196, 437745, 458590, 550308, 583660, 642026, 687885, 875490, 917180, 963039, 1284052, 1375770, 1605065, 1750980, 1926078, 2751540, 3210130, 3852156, 4815195, 6420260, 9630390, 19260780]

約数ペア:

[(1, 19260780), (2, 9630390), (3, 6420260), (4, 4815195), (5, 3852156), (6, 3210130), (7, 2751540), (10, 1926078), (11, 1750980), (12, 1605065), (14, 1375770), (15, 1284052), (20, 963039), (21, 917180), (22, 875490), (28, 687885), (30, 642026), (33, 583660), (35, 550308), (42, 458590), (44, 437745), (55, 350196), (60, 321013), (66, 291830), (70, 275154), (77, 250140), (84, 229295), (105, 183436), (110, 175098), (121, 159180), (132, 145915), (140, 137577), (154, 125070), (165, 116732), (210, 91718), (220, 87549), (231, 83380), (242, 79590), (308, 62535), (330, 58366), (363, 53060), (379, 50820), (385, 50028), (420, 45859), (462, 41690), (484, 39795), (605, 31836), (660, 29183), (726, 26530), (758, 25410), (770, 25014), (847, 22740), (924, 20845), (1137, 16940), (1155, 16676), (1210, 15918), (1452, 13265), (1516, 12705), (1540, 12507), (1694, 11370), (1815, 10612), (1895, 10164), (2274, 8470), (2310, 8338), (2420, 7959), (2541, 7580), (2653, 7260), (3388, 5685), (3630, 5306), (3790, 5082), (4169, 4620), (4235, 4548)]