30457840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{397}}^1$

素因数の和:554

約数の個数: 80

約数和(自身を含む): 81726912

約数和(自身を除く): 51269072

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 137, 140, 274, 280, 397, 548, 560, 685, 794, 959, 1096, 1370, 1588, 1918, 1985, 2192, 2740, 2779, 3176, 3836, 3970, 4795, 5480, 5558, 6352, 7672, 7940, 9590, 10960, 11116, 13895, 15344, 15880, 19180, 22232, 27790, 31760, 38360, 44464, 54389, 55580, 76720, 108778, 111160, 217556, 222320, 271945, 380723, 435112, 543890, 761446, 870224, 1087780, 1522892, 1903615, 2175560, 3045784, 3807230, 4351120, 6091568, 7614460, 15228920, 30457840]

約数ペア:

[(1, 30457840), (2, 15228920), (4, 7614460), (5, 6091568), (7, 4351120), (8, 3807230), (10, 3045784), (14, 2175560), (16, 1903615), (20, 1522892), (28, 1087780), (35, 870224), (40, 761446), (56, 543890), (70, 435112), (80, 380723), (112, 271945), (137, 222320), (140, 217556), (274, 111160), (280, 108778), (397, 76720), (548, 55580), (560, 54389), (685, 44464), (794, 38360), (959, 31760), (1096, 27790), (1370, 22232), (1588, 19180), (1918, 15880), (1985, 15344), (2192, 13895), (2740, 11116), (2779, 10960), (3176, 9590), (3836, 7940), (3970, 7672), (4795, 6352), (5480, 5558)]