53301220

素因数分解:

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

素因数の和:557

約数の個数: 72

約数和(自身を含む): 131488056

約数和(自身を除く): 78186836

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 137, 140, 196, 245, 274, 397, 490, 548, 685, 794, 959, 980, 1370, 1588, 1918, 1985, 2740, 2779, 3836, 3970, 4795, 5558, 6713, 7940, 9590, 11116, 13426, 13895, 19180, 19453, 26852, 27790, 33565, 38906, 54389, 55580, 67130, 77812, 97265, 108778, 134260, 194530, 217556, 271945, 380723, 389060, 543890, 761446, 1087780, 1522892, 1903615, 2665061, 3807230, 5330122, 7614460, 10660244, 13325305, 26650610, 53301220]

約数ペア:

[(1, 53301220), (2, 26650610), (4, 13325305), (5, 10660244), (7, 7614460), (10, 5330122), (14, 3807230), (20, 2665061), (28, 1903615), (35, 1522892), (49, 1087780), (70, 761446), (98, 543890), (137, 389060), (140, 380723), (196, 271945), (245, 217556), (274, 194530), (397, 134260), (490, 108778), (548, 97265), (685, 77812), (794, 67130), (959, 55580), (980, 54389), (1370, 38906), (1588, 33565), (1918, 27790), (1985, 26852), (2740, 19453), (2779, 19180), (3836, 13895), (3970, 13426), (4795, 11116), (5558, 9590), (6713, 7940)]