28019750

素因数分解:

$2^1\times 5^3\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{443}}^1$

素因数の和:494

約数の個数: 64

約数和(自身を含む): 59844096

約数和(自身を除く): 31824346

約数列:

[1, 2, 5, 10, 11, 22, 23, 25, 46, 50, 55, 110, 115, 125, 230, 250, 253, 275, 443, 506, 550, 575, 886, 1150, 1265, 1375, 2215, 2530, 2750, 2875, 4430, 4873, 5750, 6325, 9746, 10189, 11075, 12650, 20378, 22150, 24365, 31625, 48730, 50945, 55375, 63250, 101890, 110750, 112079, 121825, 224158, 243650, 254725, 509450, 560395, 609125, 1120790, 1218250, 1273625, 2547250, 2801975, 5603950, 14009875, 28019750]

約数ペア:

[(1, 28019750), (2, 14009875), (5, 5603950), (10, 2801975), (11, 2547250), (22, 1273625), (23, 1218250), (25, 1120790), (46, 609125), (50, 560395), (55, 509450), (110, 254725), (115, 243650), (125, 224158), (230, 121825), (250, 112079), (253, 110750), (275, 101890), (443, 63250), (506, 55375), (550, 50945), (575, 48730), (886, 31625), (1150, 24365), (1265, 22150), (1375, 20378), (2215, 12650), (2530, 11075), (2750, 10189), (2875, 9746), (4430, 6325), (4873, 5750)]