20053075

素因数分解:

$5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{163}}^1$

素因数の和:236

約数の個数: 48

約数和(自身を含む): 30910720

約数和(自身を除く): 10857645

約数列:

[1, 5, 7, 19, 25, 35, 37, 95, 133, 163, 175, 185, 259, 475, 665, 703, 815, 925, 1141, 1295, 3097, 3325, 3515, 4075, 4921, 5705, 6031, 6475, 15485, 17575, 21679, 24605, 28525, 30155, 42217, 77425, 108395, 114589, 123025, 150775, 211085, 541975, 572945, 802123, 1055425, 2864725, 4010615, 20053075]

約数ペア:

[(1, 20053075), (5, 4010615), (7, 2864725), (19, 1055425), (25, 802123), (35, 572945), (37, 541975), (95, 211085), (133, 150775), (163, 123025), (175, 114589), (185, 108395), (259, 77425), (475, 42217), (665, 30155), (703, 28525), (815, 24605), (925, 21679), (1141, 17575), (1295, 15485), (3097, 6475), (3325, 6031), (3515, 5705), (4075, 4921)]