28146250

素因数分解:

$2^1\times 5^4\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1$

素因数の和:145

約数の個数: 80

約数和(自身を含む): 60730560

約数和(自身を除く): 32584310

約数列:

[1, 2, 5, 10, 11, 22, 23, 25, 46, 50, 55, 89, 110, 115, 125, 178, 230, 250, 253, 275, 445, 506, 550, 575, 625, 890, 979, 1150, 1250, 1265, 1375, 1958, 2047, 2225, 2530, 2750, 2875, 4094, 4450, 4895, 5750, 6325, 6875, 9790, 10235, 11125, 12650, 13750, 14375, 20470, 22250, 22517, 24475, 28750, 31625, 45034, 48950, 51175, 55625, 63250, 102350, 111250, 112585, 122375, 158125, 225170, 244750, 255875, 316250, 511750, 562925, 611875, 1125850, 1223750, 1279375, 2558750, 2814625, 5629250, 14073125, 28146250]

約数ペア:

[(1, 28146250), (2, 14073125), (5, 5629250), (10, 2814625), (11, 2558750), (22, 1279375), (23, 1223750), (25, 1125850), (46, 611875), (50, 562925), (55, 511750), (89, 316250), (110, 255875), (115, 244750), (125, 225170), (178, 158125), (230, 122375), (250, 112585), (253, 111250), (275, 102350), (445, 63250), (506, 55625), (550, 51175), (575, 48950), (625, 45034), (890, 31625), (979, 28750), (1150, 24475), (1250, 22517), (1265, 22250), (1375, 20470), (1958, 14375), (2047, 13750), (2225, 12650), (2530, 11125), (2750, 10235), (2875, 9790), (4094, 6875), (4450, 6325), (4895, 5750)]