28491100

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{439}}^1$

素因数の和:523

約数の個数: 72

約数和(自身を含む): 68745600

約数和(自身を除く): 40254500

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 59, 100, 110, 118, 220, 236, 275, 295, 439, 550, 590, 649, 878, 1100, 1180, 1298, 1475, 1756, 2195, 2596, 2950, 3245, 4390, 4829, 5900, 6490, 8780, 9658, 10975, 12980, 16225, 19316, 21950, 24145, 25901, 32450, 43900, 48290, 51802, 64900, 96580, 103604, 120725, 129505, 241450, 259010, 284911, 482900, 518020, 569822, 647525, 1139644, 1295050, 1424555, 2590100, 2849110, 5698220, 7122775, 14245550, 28491100]

約数ペア:

[(1, 28491100), (2, 14245550), (4, 7122775), (5, 5698220), (10, 2849110), (11, 2590100), (20, 1424555), (22, 1295050), (25, 1139644), (44, 647525), (50, 569822), (55, 518020), (59, 482900), (100, 284911), (110, 259010), (118, 241450), (220, 129505), (236, 120725), (275, 103604), (295, 96580), (439, 64900), (550, 51802), (590, 48290), (649, 43900), (878, 32450), (1100, 25901), (1180, 24145), (1298, 21950), (1475, 19316), (1756, 16225), (2195, 12980), (2596, 10975), (2950, 9658), (3245, 8780), (4390, 6490), (4829, 5900)]