28937925

素因数分解:

$3^3\times 5^2\times {\mathrm{43}}^1\times {\mathrm{997}}^1$

素因数の和:1059

約数の個数: 48

約数和(自身を含む): 54450880

約数和(自身を除く): 25512955

約数列:

[1, 3, 5, 9, 15, 25, 27, 43, 45, 75, 129, 135, 215, 225, 387, 645, 675, 997, 1075, 1161, 1935, 2991, 3225, 4985, 5805, 8973, 9675, 14955, 24925, 26919, 29025, 42871, 44865, 74775, 128613, 134595, 214355, 224325, 385839, 643065, 672975, 1071775, 1157517, 1929195, 3215325, 5787585, 9645975, 28937925]

約数ペア:

[(1, 28937925), (3, 9645975), (5, 5787585), (9, 3215325), (15, 1929195), (25, 1157517), (27, 1071775), (43, 672975), (45, 643065), (75, 385839), (129, 224325), (135, 214355), (215, 134595), (225, 128613), (387, 74775), (645, 44865), (675, 42871), (997, 29025), (1075, 26919), (1161, 24925), (1935, 14955), (2991, 9675), (3225, 8973), (4985, 5805)]