90260240

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{1811}}^1$

素因数の和:1920

約数の個数: 80

約数和(自身を含む): 242663040

約数和(自身を除く): 152402800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 89, 112, 140, 178, 280, 356, 445, 560, 623, 712, 890, 1246, 1424, 1780, 1811, 2492, 3115, 3560, 3622, 4984, 6230, 7120, 7244, 9055, 9968, 12460, 12677, 14488, 18110, 24920, 25354, 28976, 36220, 49840, 50708, 63385, 72440, 101416, 126770, 144880, 161179, 202832, 253540, 322358, 507080, 644716, 805895, 1014160, 1128253, 1289432, 1611790, 2256506, 2578864, 3223580, 4513012, 5641265, 6447160, 9026024, 11282530, 12894320, 18052048, 22565060, 45130120, 90260240]

約数ペア:

[(1, 90260240), (2, 45130120), (4, 22565060), (5, 18052048), (7, 12894320), (8, 11282530), (10, 9026024), (14, 6447160), (16, 5641265), (20, 4513012), (28, 3223580), (35, 2578864), (40, 2256506), (56, 1611790), (70, 1289432), (80, 1128253), (89, 1014160), (112, 805895), (140, 644716), (178, 507080), (280, 322358), (356, 253540), (445, 202832), (560, 161179), (623, 144880), (712, 126770), (890, 101416), (1246, 72440), (1424, 63385), (1780, 50708), (1811, 49840), (2492, 36220), (3115, 28976), (3560, 25354), (3622, 24920), (4984, 18110), (6230, 14488), (7120, 12677), (7244, 12460), (9055, 9968)]