1155220

素因数分解:

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

素因数の和:168

約数の個数: 48

約数和(自身を含む): 2721600

約数和(自身を除く): 1566380

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 59, 89, 110, 118, 178, 220, 236, 295, 356, 445, 590, 649, 890, 979, 1180, 1298, 1780, 1958, 2596, 3245, 3916, 4895, 5251, 6490, 9790, 10502, 12980, 19580, 21004, 26255, 52510, 57761, 105020, 115522, 231044, 288805, 577610, 1155220]

約数ペア:

[(1, 1155220), (2, 577610), (4, 288805), (5, 231044), (10, 115522), (11, 105020), (20, 57761), (22, 52510), (44, 26255), (55, 21004), (59, 19580), (89, 12980), (110, 10502), (118, 9790), (178, 6490), (220, 5251), (236, 4895), (295, 3916), (356, 3245), (445, 2596), (590, 1958), (649, 1780), (890, 1298), (979, 1180)]