28697900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{3727}}^1$

素因数の和:3759

約数の個数: 72

約数和(自身を含む): 77661696

約数和(自身を除く): 48963796

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 25, 28, 35, 44, 50, 55, 70, 77, 100, 110, 140, 154, 175, 220, 275, 308, 350, 385, 550, 700, 770, 1100, 1540, 1925, 3727, 3850, 7454, 7700, 14908, 18635, 26089, 37270, 40997, 52178, 74540, 81994, 93175, 104356, 130445, 163988, 186350, 204985, 260890, 286979, 372700, 409970, 521780, 573958, 652225, 819940, 1024925, 1147916, 1304450, 1434895, 2049850, 2608900, 2869790, 4099700, 5739580, 7174475, 14348950, 28697900]

約数ペア:

[(1, 28697900), (2, 14348950), (4, 7174475), (5, 5739580), (7, 4099700), (10, 2869790), (11, 2608900), (14, 2049850), (20, 1434895), (22, 1304450), (25, 1147916), (28, 1024925), (35, 819940), (44, 652225), (50, 573958), (55, 521780), (70, 409970), (77, 372700), (100, 286979), (110, 260890), (140, 204985), (154, 186350), (175, 163988), (220, 130445), (275, 104356), (308, 93175), (350, 81994), (385, 74540), (550, 52178), (700, 40997), (770, 37270), (1100, 26089), (1540, 18635), (1925, 14908), (3727, 7700), (3850, 7454)]