28884180

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1949}}^1$

素因数の和:1993

約数の個数: 96

約数和(自身を含む): 91728000

約数和(自身を除く): 62843820

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 19, 20, 26, 30, 38, 39, 52, 57, 60, 65, 76, 78, 95, 114, 130, 156, 190, 195, 228, 247, 260, 285, 380, 390, 494, 570, 741, 780, 988, 1140, 1235, 1482, 1949, 2470, 2964, 3705, 3898, 4940, 5847, 7410, 7796, 9745, 11694, 14820, 19490, 23388, 25337, 29235, 37031, 38980, 50674, 58470, 74062, 76011, 101348, 111093, 116940, 126685, 148124, 152022, 185155, 222186, 253370, 304044, 370310, 380055, 444372, 481403, 506740, 555465, 740620, 760110, 962806, 1110930, 1444209, 1520220, 1925612, 2221860, 2407015, 2888418, 4814030, 5776836, 7221045, 9628060, 14442090, 28884180]

約数ペア:

[(1, 28884180), (2, 14442090), (3, 9628060), (4, 7221045), (5, 5776836), (6, 4814030), (10, 2888418), (12, 2407015), (13, 2221860), (15, 1925612), (19, 1520220), (20, 1444209), (26, 1110930), (30, 962806), (38, 760110), (39, 740620), (52, 555465), (57, 506740), (60, 481403), (65, 444372), (76, 380055), (78, 370310), (95, 304044), (114, 253370), (130, 222186), (156, 185155), (190, 152022), (195, 148124), (228, 126685), (247, 116940), (260, 111093), (285, 101348), (380, 76011), (390, 74062), (494, 58470), (570, 50674), (741, 38980), (780, 37031), (988, 29235), (1140, 25337), (1235, 23388), (1482, 19490), (1949, 14820), (2470, 11694), (2964, 9745), (3705, 7796), (3898, 7410), (4940, 5847)]