19755820

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{1061}}^1$

素因数の和:1103

約数の個数: 72

約数和(自身を含む): 50848560

約数和(自身を除く): 31092740

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 49, 70, 76, 95, 98, 133, 140, 190, 196, 245, 266, 380, 490, 532, 665, 931, 980, 1061, 1330, 1862, 2122, 2660, 3724, 4244, 4655, 5305, 7427, 9310, 10610, 14854, 18620, 20159, 21220, 29708, 37135, 40318, 51989, 74270, 80636, 100795, 103978, 141113, 148540, 201590, 207956, 259945, 282226, 403180, 519890, 564452, 705565, 987791, 1039780, 1411130, 1975582, 2822260, 3951164, 4938955, 9877910, 19755820]

約数ペア:

[(1, 19755820), (2, 9877910), (4, 4938955), (5, 3951164), (7, 2822260), (10, 1975582), (14, 1411130), (19, 1039780), (20, 987791), (28, 705565), (35, 564452), (38, 519890), (49, 403180), (70, 282226), (76, 259945), (95, 207956), (98, 201590), (133, 148540), (140, 141113), (190, 103978), (196, 100795), (245, 80636), (266, 74270), (380, 51989), (490, 40318), (532, 37135), (665, 29708), (931, 21220), (980, 20159), (1061, 18620), (1330, 14854), (1862, 10610), (2122, 9310), (2660, 7427), (3724, 5305), (4244, 4655)]