78471820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{15149}}^1$

素因数の和:15202

約数の個数: 48

約数和(自身を含む): 193435200

約数和(自身を除く): 114963380

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 37, 70, 74, 140, 148, 185, 259, 370, 518, 740, 1036, 1295, 2590, 5180, 15149, 30298, 60596, 75745, 106043, 151490, 212086, 302980, 424172, 530215, 560513, 1060430, 1121026, 2120860, 2242052, 2802565, 3923591, 5605130, 7847182, 11210260, 15694364, 19617955, 39235910, 78471820]

約数ペア:

[(1, 78471820), (2, 39235910), (4, 19617955), (5, 15694364), (7, 11210260), (10, 7847182), (14, 5605130), (20, 3923591), (28, 2802565), (35, 2242052), (37, 2120860), (70, 1121026), (74, 1060430), (140, 560513), (148, 530215), (185, 424172), (259, 302980), (370, 212086), (518, 151490), (740, 106043), (1036, 75745), (1295, 60596), (2590, 30298), (5180, 15149)]