25780440

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{653}}^1$

素因数の和:721

約数の個数: 128

約数和(自身を含む): 90408960

約数和(自身を除く): 64628520

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 47, 56, 60, 70, 84, 94, 105, 120, 140, 141, 168, 188, 210, 235, 280, 282, 329, 376, 420, 470, 564, 653, 658, 705, 840, 940, 987, 1128, 1306, 1316, 1410, 1645, 1880, 1959, 1974, 2612, 2632, 2820, 3265, 3290, 3918, 3948, 4571, 4935, 5224, 5640, 6530, 6580, 7836, 7896, 9142, 9795, 9870, 13060, 13160, 13713, 15672, 18284, 19590, 19740, 22855, 26120, 27426, 30691, 36568, 39180, 39480, 45710, 54852, 61382, 68565, 78360, 91420, 92073, 109704, 122764, 137130, 153455, 182840, 184146, 214837, 245528, 274260, 306910, 368292, 429674, 460365, 548520, 613820, 644511, 736584, 859348, 920730, 1074185, 1227640, 1289022, 1718696, 1841460, 2148370, 2578044, 3222555, 3682920, 4296740, 5156088, 6445110, 8593480, 12890220, 25780440]

約数ペア:

[(1, 25780440), (2, 12890220), (3, 8593480), (4, 6445110), (5, 5156088), (6, 4296740), (7, 3682920), (8, 3222555), (10, 2578044), (12, 2148370), (14, 1841460), (15, 1718696), (20, 1289022), (21, 1227640), (24, 1074185), (28, 920730), (30, 859348), (35, 736584), (40, 644511), (42, 613820), (47, 548520), (56, 460365), (60, 429674), (70, 368292), (84, 306910), (94, 274260), (105, 245528), (120, 214837), (140, 184146), (141, 182840), (168, 153455), (188, 137130), (210, 122764), (235, 109704), (280, 92073), (282, 91420), (329, 78360), (376, 68565), (420, 61382), (470, 54852), (564, 45710), (653, 39480), (658, 39180), (705, 36568), (840, 30691), (940, 27426), (987, 26120), (1128, 22855), (1306, 19740), (1316, 19590), (1410, 18284), (1645, 15672), (1880, 13713), (1959, 13160), (1974, 13060), (2612, 9870), (2632, 9795), (2820, 9142), (3265, 7896), (3290, 7836), (3918, 6580), (3948, 6530), (4571, 5640), (4935, 5224)]