1331509520

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{48809}}^1$

素因数の和:48864

約数の個数: 80

約数和(自身を含む): 3486205440

約数和(自身を除く): 2154695920

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 40, 44, 55, 62, 80, 88, 110, 124, 155, 176, 220, 248, 310, 341, 440, 496, 620, 682, 880, 1240, 1364, 1705, 2480, 2728, 3410, 5456, 6820, 13640, 27280, 48809, 97618, 195236, 244045, 390472, 488090, 536899, 780944, 976180, 1073798, 1513079, 1952360, 2147596, 2684495, 3026158, 3904720, 4295192, 5368990, 6052316, 7565395, 8590384, 10737980, 12104632, 15130790, 16643869, 21475960, 24209264, 30261580, 33287738, 42951920, 60523160, 66575476, 83219345, 121046320, 133150952, 166438690, 266301904, 332877380, 665754760, 1331509520]

約数ペア:

[(1, 1331509520), (2, 665754760), (4, 332877380), (5, 266301904), (8, 166438690), (10, 133150952), (11, 121046320), (16, 83219345), (20, 66575476), (22, 60523160), (31, 42951920), (40, 33287738), (44, 30261580), (55, 24209264), (62, 21475960), (80, 16643869), (88, 15130790), (110, 12104632), (124, 10737980), (155, 8590384), (176, 7565395), (220, 6052316), (248, 5368990), (310, 4295192), (341, 3904720), (440, 3026158), (496, 2684495), (620, 2147596), (682, 1952360), (880, 1513079), (1240, 1073798), (1364, 976180), (1705, 780944), (2480, 536899), (2728, 488090), (3410, 390472), (5456, 244045), (6820, 195236), (13640, 97618), (27280, 48809)]