661813440

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{689389}}^1$

素因数の和:689409

約数の個数: 56

約数和(自身を含む): 2101260720

約数和(自身を除く): 1439447280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 160, 192, 240, 320, 480, 960, 689389, 1378778, 2068167, 2757556, 3446945, 4136334, 5515112, 6893890, 8272668, 10340835, 11030224, 13787780, 16545336, 20681670, 22060448, 27575560, 33090672, 41363340, 44120896, 55151120, 66181344, 82726680, 110302240, 132362688, 165453360, 220604480, 330906720, 661813440]

約数ペア:

[(1, 661813440), (2, 330906720), (3, 220604480), (4, 165453360), (5, 132362688), (6, 110302240), (8, 82726680), (10, 66181344), (12, 55151120), (15, 44120896), (16, 41363340), (20, 33090672), (24, 27575560), (30, 22060448), (32, 20681670), (40, 16545336), (48, 13787780), (60, 11030224), (64, 10340835), (80, 8272668), (96, 6893890), (120, 5515112), (160, 4136334), (192, 3446945), (240, 2757556), (320, 2068167), (480, 1378778), (960, 689389)]