28887180

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{631}}^1$

素因数の和:759

約数の個数: 96

約数和(自身を含む): 93434880

約数和(自身を除く): 64547700

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 109, 140, 210, 218, 327, 420, 436, 545, 631, 654, 763, 1090, 1262, 1308, 1526, 1635, 1893, 2180, 2289, 2524, 3052, 3155, 3270, 3786, 3815, 4417, 4578, 6310, 6540, 7572, 7630, 8834, 9156, 9465, 11445, 12620, 13251, 15260, 17668, 18930, 22085, 22890, 26502, 37860, 44170, 45780, 53004, 66255, 68779, 88340, 132510, 137558, 206337, 265020, 275116, 343895, 412674, 481453, 687790, 825348, 962906, 1031685, 1375580, 1444359, 1925812, 2063370, 2407265, 2888718, 4126740, 4814530, 5777436, 7221795, 9629060, 14443590, 28887180]

約数ペア:

[(1, 28887180), (2, 14443590), (3, 9629060), (4, 7221795), (5, 5777436), (6, 4814530), (7, 4126740), (10, 2888718), (12, 2407265), (14, 2063370), (15, 1925812), (20, 1444359), (21, 1375580), (28, 1031685), (30, 962906), (35, 825348), (42, 687790), (60, 481453), (70, 412674), (84, 343895), (105, 275116), (109, 265020), (140, 206337), (210, 137558), (218, 132510), (327, 88340), (420, 68779), (436, 66255), (545, 53004), (631, 45780), (654, 44170), (763, 37860), (1090, 26502), (1262, 22890), (1308, 22085), (1526, 18930), (1635, 17668), (1893, 15260), (2180, 13251), (2289, 12620), (2524, 11445), (3052, 9465), (3155, 9156), (3270, 8834), (3786, 7630), (3815, 7572), (4417, 6540), (4578, 6310)]