280967580

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{313}}^1\times {\mathrm{4987}}^1$

素因数の和:5315

約数の個数: 72

約数和(自身を含む): 855162672

約数和(自身を除く): 574195092

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 313, 626, 939, 1252, 1565, 1878, 2817, 3130, 3756, 4695, 4987, 5634, 6260, 9390, 9974, 11268, 14085, 14961, 18780, 19948, 24935, 28170, 29922, 44883, 49870, 56340, 59844, 74805, 89766, 99740, 149610, 179532, 224415, 299220, 448830, 897660, 1560931, 3121862, 4682793, 6243724, 7804655, 9365586, 14048379, 15609310, 18731172, 23413965, 28096758, 31218620, 46827930, 56193516, 70241895, 93655860, 140483790, 280967580]

約数ペア:

[(1, 280967580), (2, 140483790), (3, 93655860), (4, 70241895), (5, 56193516), (6, 46827930), (9, 31218620), (10, 28096758), (12, 23413965), (15, 18731172), (18, 15609310), (20, 14048379), (30, 9365586), (36, 7804655), (45, 6243724), (60, 4682793), (90, 3121862), (180, 1560931), (313, 897660), (626, 448830), (939, 299220), (1252, 224415), (1565, 179532), (1878, 149610), (2817, 99740), (3130, 89766), (3756, 74805), (4695, 59844), (4987, 56340), (5634, 49870), (6260, 44883), (9390, 29922), (9974, 28170), (11268, 24935), (14085, 19948), (14961, 18780)]