388024980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{923869}}^1$

素因数の和:923888

約数の個数: 48

約数和(自身を含む): 1241681280

約数和(自身を除く): 853656300

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 923869, 1847738, 2771607, 3695476, 4619345, 5543214, 6467083, 9238690, 11086428, 12934166, 13858035, 18477380, 19401249, 25868332, 27716070, 32335415, 38802498, 55432140, 64670830, 77604996, 97006245, 129341660, 194012490, 388024980]

約数ペア:

[(1, 388024980), (2, 194012490), (3, 129341660), (4, 97006245), (5, 77604996), (6, 64670830), (7, 55432140), (10, 38802498), (12, 32335415), (14, 27716070), (15, 25868332), (20, 19401249), (21, 18477380), (28, 13858035), (30, 12934166), (35, 11086428), (42, 9238690), (60, 6467083), (70, 5543214), (84, 4619345), (105, 3695476), (140, 2771607), (210, 1847738), (420, 923869)]