177428900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{7013}}^1$

素因数の和:7061

約数の個数: 72

約数和(自身を含む): 438346944

約数和(自身を除く): 260918044

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 23, 25, 44, 46, 50, 55, 92, 100, 110, 115, 220, 230, 253, 275, 460, 506, 550, 575, 1012, 1100, 1150, 1265, 2300, 2530, 5060, 6325, 7013, 12650, 14026, 25300, 28052, 35065, 70130, 77143, 140260, 154286, 161299, 175325, 308572, 322598, 350650, 385715, 645196, 701300, 771430, 806495, 1542860, 1612990, 1774289, 1928575, 3225980, 3548578, 3857150, 4032475, 7097156, 7714300, 8064950, 8871445, 16129900, 17742890, 35485780, 44357225, 88714450, 177428900]

約数ペア:

[(1, 177428900), (2, 88714450), (4, 44357225), (5, 35485780), (10, 17742890), (11, 16129900), (20, 8871445), (22, 8064950), (23, 7714300), (25, 7097156), (44, 4032475), (46, 3857150), (50, 3548578), (55, 3225980), (92, 1928575), (100, 1774289), (110, 1612990), (115, 1542860), (220, 806495), (230, 771430), (253, 701300), (275, 645196), (460, 385715), (506, 350650), (550, 322598), (575, 308572), (1012, 175325), (1100, 161299), (1150, 154286), (1265, 140260), (2300, 77143), (2530, 70130), (5060, 35065), (6325, 28052), (7013, 25300), (12650, 14026)]