30807740

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{251}}^1$

素因数の和:315

約数の個数: 72

約数和(自身を含む): 72585072

約数和(自身を除く): 41777332

約数列:

[1, 2, 4, 5, 10, 17, 19, 20, 34, 38, 68, 76, 85, 95, 170, 190, 251, 323, 340, 361, 380, 502, 646, 722, 1004, 1255, 1292, 1444, 1615, 1805, 2510, 3230, 3610, 4267, 4769, 5020, 6137, 6460, 7220, 8534, 9538, 12274, 17068, 19076, 21335, 23845, 24548, 30685, 42670, 47690, 61370, 81073, 85340, 90611, 95380, 122740, 162146, 181222, 324292, 362444, 405365, 453055, 810730, 906110, 1540387, 1621460, 1812220, 3080774, 6161548, 7701935, 15403870, 30807740]

約数ペア:

[(1, 30807740), (2, 15403870), (4, 7701935), (5, 6161548), (10, 3080774), (17, 1812220), (19, 1621460), (20, 1540387), (34, 906110), (38, 810730), (68, 453055), (76, 405365), (85, 362444), (95, 324292), (170, 181222), (190, 162146), (251, 122740), (323, 95380), (340, 90611), (361, 85340), (380, 81073), (502, 61370), (646, 47690), (722, 42670), (1004, 30685), (1255, 24548), (1292, 23845), (1444, 21335), (1615, 19076), (1805, 17068), (2510, 12274), (3230, 9538), (3610, 8534), (4267, 7220), (4769, 6460), (5020, 6137)]