77736620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{109}}^1\times {\mathrm{211}}^1$

素因数の和:355

約数の個数: 72

約数和(自身を含む): 179237520

約数和(自身を除く): 101500900

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 109, 130, 169, 211, 218, 260, 338, 422, 436, 545, 676, 844, 845, 1055, 1090, 1417, 1690, 2110, 2180, 2743, 2834, 3380, 4220, 5486, 5668, 7085, 10972, 13715, 14170, 18421, 22999, 27430, 28340, 35659, 36842, 45998, 54860, 71318, 73684, 91996, 92105, 114995, 142636, 178295, 184210, 229990, 298987, 356590, 368420, 459980, 597974, 713180, 1195948, 1494935, 2989870, 3886831, 5979740, 7773662, 15547324, 19434155, 38868310, 77736620]

約数ペア:

[(1, 77736620), (2, 38868310), (4, 19434155), (5, 15547324), (10, 7773662), (13, 5979740), (20, 3886831), (26, 2989870), (52, 1494935), (65, 1195948), (109, 713180), (130, 597974), (169, 459980), (211, 368420), (218, 356590), (260, 298987), (338, 229990), (422, 184210), (436, 178295), (545, 142636), (676, 114995), (844, 92105), (845, 91996), (1055, 73684), (1090, 71318), (1417, 54860), (1690, 45998), (2110, 36842), (2180, 35659), (2743, 28340), (2834, 27430), (3380, 22999), (4220, 18421), (5486, 14170), (5668, 13715), (7085, 10972)]