12769720

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{211}}^1$

素因数の和:328

約数の個数: 64

約数和(自身を含む): 30909600

約数和(自身を除く): 18139880

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 89, 136, 170, 178, 211, 340, 356, 422, 445, 680, 712, 844, 890, 1055, 1513, 1688, 1780, 2110, 3026, 3560, 3587, 4220, 6052, 7174, 7565, 8440, 12104, 14348, 15130, 17935, 18779, 28696, 30260, 35870, 37558, 60520, 71740, 75116, 93895, 143480, 150232, 187790, 319243, 375580, 638486, 751160, 1276972, 1596215, 2553944, 3192430, 6384860, 12769720]

約数ペア:

[(1, 12769720), (2, 6384860), (4, 3192430), (5, 2553944), (8, 1596215), (10, 1276972), (17, 751160), (20, 638486), (34, 375580), (40, 319243), (68, 187790), (85, 150232), (89, 143480), (136, 93895), (170, 75116), (178, 71740), (211, 60520), (340, 37558), (356, 35870), (422, 30260), (445, 28696), (680, 18779), (712, 17935), (844, 15130), (890, 14348), (1055, 12104), (1513, 8440), (1688, 7565), (1780, 7174), (2110, 6052), (3026, 4220), (3560, 3587)]