2020145380

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{2131}}^1$

素因数の和:2321

約数の個数: 96

約数和(自身を含む): 4813885440

約数和(自身を除く): 2793740060

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 31, 44, 55, 62, 110, 124, 139, 155, 220, 278, 310, 341, 556, 620, 682, 695, 1364, 1390, 1529, 1705, 2131, 2780, 3058, 3410, 4262, 4309, 6116, 6820, 7645, 8524, 8618, 10655, 15290, 17236, 21310, 21545, 23441, 30580, 42620, 43090, 46882, 47399, 66061, 86180, 93764, 94798, 117205, 132122, 189596, 234410, 236995, 264244, 296209, 330305, 468820, 473990, 592418, 660610, 726671, 947980, 1184836, 1321220, 1453342, 1481045, 2906684, 2962090, 3258299, 3633355, 5924180, 6516598, 7266710, 9182479, 13033196, 14533420, 16291495, 18364958, 32582990, 36729916, 45912395, 65165980, 91824790, 101007269, 183649580, 202014538, 404029076, 505036345, 1010072690, 2020145380]

約数ペア:

[(1, 2020145380), (2, 1010072690), (4, 505036345), (5, 404029076), (10, 202014538), (11, 183649580), (20, 101007269), (22, 91824790), (31, 65165980), (44, 45912395), (55, 36729916), (62, 32582990), (110, 18364958), (124, 16291495), (139, 14533420), (155, 13033196), (220, 9182479), (278, 7266710), (310, 6516598), (341, 5924180), (556, 3633355), (620, 3258299), (682, 2962090), (695, 2906684), (1364, 1481045), (1390, 1453342), (1529, 1321220), (1705, 1184836), (2131, 947980), (2780, 726671), (3058, 660610), (3410, 592418), (4262, 473990), (4309, 468820), (6116, 330305), (6820, 296209), (7645, 264244), (8524, 236995), (8618, 234410), (10655, 189596), (15290, 132122), (17236, 117205), (21310, 94798), (21545, 93764), (23441, 86180), (30580, 66061), (42620, 47399), (43090, 46882)]