28880500

素因数分解:

$2^2\times 5^3\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{89}}^1$

素因数の和:178

約数の個数: 96

約数和(自身を含む): 70761600

約数和(自身を除く): 41881100

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 59, 89, 100, 110, 118, 125, 178, 220, 236, 250, 275, 295, 356, 445, 500, 550, 590, 649, 890, 979, 1100, 1180, 1298, 1375, 1475, 1780, 1958, 2225, 2596, 2750, 2950, 3245, 3916, 4450, 4895, 5251, 5500, 5900, 6490, 7375, 8900, 9790, 10502, 11125, 12980, 14750, 16225, 19580, 21004, 22250, 24475, 26255, 29500, 32450, 44500, 48950, 52510, 57761, 64900, 81125, 97900, 105020, 115522, 122375, 131275, 162250, 231044, 244750, 262550, 288805, 324500, 489500, 525100, 577610, 656375, 1155220, 1312750, 1444025, 2625500, 2888050, 5776100, 7220125, 14440250, 28880500]

約数ペア:

[(1, 28880500), (2, 14440250), (4, 7220125), (5, 5776100), (10, 2888050), (11, 2625500), (20, 1444025), (22, 1312750), (25, 1155220), (44, 656375), (50, 577610), (55, 525100), (59, 489500), (89, 324500), (100, 288805), (110, 262550), (118, 244750), (125, 231044), (178, 162250), (220, 131275), (236, 122375), (250, 115522), (275, 105020), (295, 97900), (356, 81125), (445, 64900), (500, 57761), (550, 52510), (590, 48950), (649, 44500), (890, 32450), (979, 29500), (1100, 26255), (1180, 24475), (1298, 22250), (1375, 21004), (1475, 19580), (1780, 16225), (1958, 14750), (2225, 12980), (2596, 11125), (2750, 10502), (2950, 9790), (3245, 8900), (3916, 7375), (4450, 6490), (4895, 5900), (5251, 5500)]