248959700

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{2543}}^1$

素因数の和:2657

約数の個数: 72

約数和(自身を含む): 596211840

約数和(自身を除く): 347252140

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 89, 100, 110, 178, 220, 275, 356, 445, 550, 890, 979, 1100, 1780, 1958, 2225, 2543, 3916, 4450, 4895, 5086, 8900, 9790, 10172, 12715, 19580, 24475, 25430, 27973, 48950, 50860, 55946, 63575, 97900, 111892, 127150, 139865, 226327, 254300, 279730, 452654, 559460, 699325, 905308, 1131635, 1398650, 2263270, 2489597, 2797300, 4526540, 4979194, 5658175, 9958388, 11316350, 12447985, 22632700, 24895970, 49791940, 62239925, 124479850, 248959700]

約数ペア:

[(1, 248959700), (2, 124479850), (4, 62239925), (5, 49791940), (10, 24895970), (11, 22632700), (20, 12447985), (22, 11316350), (25, 9958388), (44, 5658175), (50, 4979194), (55, 4526540), (89, 2797300), (100, 2489597), (110, 2263270), (178, 1398650), (220, 1131635), (275, 905308), (356, 699325), (445, 559460), (550, 452654), (890, 279730), (979, 254300), (1100, 226327), (1780, 139865), (1958, 127150), (2225, 111892), (2543, 97900), (3916, 63575), (4450, 55946), (4895, 50860), (5086, 48950), (8900, 27973), (9790, 25430), (10172, 24475), (12715, 19580)]