7804980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{331}}^1$

素因数の和:477

約数の個数: 72

約数和(自身を含む): 23927904

約数和(自身を除く): 16122924

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 131, 180, 262, 331, 393, 524, 655, 662, 786, 993, 1179, 1310, 1324, 1572, 1655, 1965, 1986, 2358, 2620, 2979, 3310, 3930, 3972, 4716, 4965, 5895, 5958, 6620, 7860, 9930, 11790, 11916, 14895, 19860, 23580, 29790, 43361, 59580, 86722, 130083, 173444, 216805, 260166, 390249, 433610, 520332, 650415, 780498, 867220, 1300830, 1560996, 1951245, 2601660, 3902490, 7804980]

約数ペア:

[(1, 7804980), (2, 3902490), (3, 2601660), (4, 1951245), (5, 1560996), (6, 1300830), (9, 867220), (10, 780498), (12, 650415), (15, 520332), (18, 433610), (20, 390249), (30, 260166), (36, 216805), (45, 173444), (60, 130083), (90, 86722), (131, 59580), (180, 43361), (262, 29790), (331, 23580), (393, 19860), (524, 14895), (655, 11916), (662, 11790), (786, 9930), (993, 7860), (1179, 6620), (1310, 5958), (1324, 5895), (1572, 4965), (1655, 4716), (1965, 3972), (1986, 3930), (2358, 3310), (2620, 2979)]