78388640

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^2\times {\mathrm{4049}}^1$

素因数の和:4086

約数の個数: 72

約数和(自身を含む): 203609700

約数和(自身を除く): 125221060

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 80, 88, 110, 121, 160, 176, 220, 242, 352, 440, 484, 605, 880, 968, 1210, 1760, 1936, 2420, 3872, 4049, 4840, 8098, 9680, 16196, 19360, 20245, 32392, 40490, 44539, 64784, 80980, 89078, 129568, 161960, 178156, 222695, 323920, 356312, 445390, 489929, 647840, 712624, 890780, 979858, 1425248, 1781560, 1959716, 2449645, 3563120, 3919432, 4899290, 7126240, 7838864, 9798580, 15677728, 19597160, 39194320, 78388640]

約数ペア:

[(1, 78388640), (2, 39194320), (4, 19597160), (5, 15677728), (8, 9798580), (10, 7838864), (11, 7126240), (16, 4899290), (20, 3919432), (22, 3563120), (32, 2449645), (40, 1959716), (44, 1781560), (55, 1425248), (80, 979858), (88, 890780), (110, 712624), (121, 647840), (160, 489929), (176, 445390), (220, 356312), (242, 323920), (352, 222695), (440, 178156), (484, 161960), (605, 129568), (880, 89078), (968, 80980), (1210, 64784), (1760, 44539), (1936, 40490), (2420, 32392), (3872, 20245), (4049, 19360), (4840, 16196), (8098, 9680)]