128319930

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{661}}^1\times {\mathrm{719}}^1$

素因数の和:1396

約数の個数: 64

約数和(自身を含む): 343180800

約数和(自身を除く): 214860870

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 90, 135, 270, 661, 719, 1322, 1438, 1983, 2157, 3305, 3595, 3966, 4314, 5949, 6471, 6610, 7190, 9915, 10785, 11898, 12942, 17847, 19413, 19830, 21570, 29745, 32355, 35694, 38826, 59490, 64710, 89235, 97065, 178470, 194130, 475259, 950518, 1425777, 2376295, 2851554, 4277331, 4752590, 7128885, 8554662, 12831993, 14257770, 21386655, 25663986, 42773310, 64159965, 128319930]

約数ペア:

[(1, 128319930), (2, 64159965), (3, 42773310), (5, 25663986), (6, 21386655), (9, 14257770), (10, 12831993), (15, 8554662), (18, 7128885), (27, 4752590), (30, 4277331), (45, 2851554), (54, 2376295), (90, 1425777), (135, 950518), (270, 475259), (661, 194130), (719, 178470), (1322, 97065), (1438, 89235), (1983, 64710), (2157, 59490), (3305, 38826), (3595, 35694), (3966, 32355), (4314, 29745), (5949, 21570), (6471, 19830), (6610, 19413), (7190, 17847), (9915, 12942), (10785, 11898)]