28338975

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{947}}^1$

素因数の和:989

約数の個数: 72

約数和(自身を含む): 61127040

約数和(自身を除く): 32788065

約数列:

[1, 3, 5, 7, 9, 15, 19, 21, 25, 35, 45, 57, 63, 75, 95, 105, 133, 171, 175, 225, 285, 315, 399, 475, 525, 665, 855, 947, 1197, 1425, 1575, 1995, 2841, 3325, 4275, 4735, 5985, 6629, 8523, 9975, 14205, 17993, 19887, 23675, 29925, 33145, 42615, 53979, 59661, 71025, 89965, 99435, 125951, 161937, 165725, 213075, 269895, 298305, 377853, 449825, 497175, 629755, 809685, 1133559, 1349475, 1491525, 1889265, 3148775, 4048425, 5667795, 9446325, 28338975]

約数ペア:

[(1, 28338975), (3, 9446325), (5, 5667795), (7, 4048425), (9, 3148775), (15, 1889265), (19, 1491525), (21, 1349475), (25, 1133559), (35, 809685), (45, 629755), (57, 497175), (63, 449825), (75, 377853), (95, 298305), (105, 269895), (133, 213075), (171, 165725), (175, 161937), (225, 125951), (285, 99435), (315, 89965), (399, 71025), (475, 59661), (525, 53979), (665, 42615), (855, 33145), (947, 29925), (1197, 23675), (1425, 19887), (1575, 17993), (1995, 14205), (2841, 9975), (3325, 8523), (4275, 6629), (4735, 5985)]