7721085020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{211}}^1\times {\mathrm{15121}}^1$

素因数の和:15363

約数の個数: 72

約数和(自身を含む): 17907956304

約数和(自身を除く): 10186871284

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 211, 220, 242, 422, 484, 605, 844, 1055, 1210, 2110, 2321, 2420, 4220, 4642, 9284, 11605, 15121, 23210, 25531, 30242, 46420, 51062, 60484, 75605, 102124, 127655, 151210, 166331, 255310, 302420, 332662, 510620, 665324, 831655, 1663310, 1829641, 3190531, 3326620, 3659282, 6381062, 7318564, 9148205, 12762124, 15952655, 18296410, 31905310, 35095841, 36592820, 63810620, 70191682, 140383364, 175479205, 350958410, 386054251, 701916820, 772108502, 1544217004, 1930271255, 3860542510, 7721085020]

約数ペア:

[(1, 7721085020), (2, 3860542510), (4, 1930271255), (5, 1544217004), (10, 772108502), (11, 701916820), (20, 386054251), (22, 350958410), (44, 175479205), (55, 140383364), (110, 70191682), (121, 63810620), (211, 36592820), (220, 35095841), (242, 31905310), (422, 18296410), (484, 15952655), (605, 12762124), (844, 9148205), (1055, 7318564), (1210, 6381062), (2110, 3659282), (2321, 3326620), (2420, 3190531), (4220, 1829641), (4642, 1663310), (9284, 831655), (11605, 665324), (15121, 510620), (23210, 332662), (25531, 302420), (30242, 255310), (46420, 166331), (51062, 151210), (60484, 127655), (75605, 102124)]