28977700

素因数分解:

$2^2\times 5^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{293}}^1$

素因数の和:373

約数の個数: 72

約数和(自身を含む): 67370688

約数和(自身を除く): 38392988

約数列:

[1, 2, 4, 5, 10, 20, 23, 25, 43, 46, 50, 86, 92, 100, 115, 172, 215, 230, 293, 430, 460, 575, 586, 860, 989, 1075, 1150, 1172, 1465, 1978, 2150, 2300, 2930, 3956, 4300, 4945, 5860, 6739, 7325, 9890, 12599, 13478, 14650, 19780, 24725, 25198, 26956, 29300, 33695, 49450, 50396, 62995, 67390, 98900, 125990, 134780, 168475, 251980, 289777, 314975, 336950, 579554, 629950, 673900, 1159108, 1259900, 1448885, 2897770, 5795540, 7244425, 14488850, 28977700]

約数ペア:

[(1, 28977700), (2, 14488850), (4, 7244425), (5, 5795540), (10, 2897770), (20, 1448885), (23, 1259900), (25, 1159108), (43, 673900), (46, 629950), (50, 579554), (86, 336950), (92, 314975), (100, 289777), (115, 251980), (172, 168475), (215, 134780), (230, 125990), (293, 98900), (430, 67390), (460, 62995), (575, 50396), (586, 49450), (860, 33695), (989, 29300), (1075, 26956), (1150, 25198), (1172, 24725), (1465, 19780), (1978, 14650), (2150, 13478), (2300, 12599), (2930, 9890), (3956, 7325), (4300, 6739), (4945, 5860)]