7718920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{331}}^1$

素因数の和:406

約数の個数: 64

約数和(自身を含む): 19362240

約数和(自身を除く): 11643320

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 53, 55, 88, 106, 110, 212, 220, 265, 331, 424, 440, 530, 583, 662, 1060, 1166, 1324, 1655, 2120, 2332, 2648, 2915, 3310, 3641, 4664, 5830, 6620, 7282, 11660, 13240, 14564, 17543, 18205, 23320, 29128, 35086, 36410, 70172, 72820, 87715, 140344, 145640, 175430, 192973, 350860, 385946, 701720, 771892, 964865, 1543784, 1929730, 3859460, 7718920]

約数ペア:

[(1, 7718920), (2, 3859460), (4, 1929730), (5, 1543784), (8, 964865), (10, 771892), (11, 701720), (20, 385946), (22, 350860), (40, 192973), (44, 175430), (53, 145640), (55, 140344), (88, 87715), (106, 72820), (110, 70172), (212, 36410), (220, 35086), (265, 29128), (331, 23320), (424, 18205), (440, 17543), (530, 14564), (583, 13240), (662, 11660), (1060, 7282), (1166, 6620), (1324, 5830), (1655, 4664), (2120, 3641), (2332, 3310), (2648, 2915)]