31336780

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1$

素因数の和:163

約数の個数: 96

約数和(自身を含む): 74462976

約数和(自身を除く): 43126196

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 37, 47, 53, 68, 74, 85, 94, 106, 148, 170, 185, 188, 212, 235, 265, 340, 370, 470, 530, 629, 740, 799, 901, 940, 1060, 1258, 1598, 1739, 1802, 1961, 2491, 2516, 3145, 3196, 3478, 3604, 3922, 3995, 4505, 4982, 6290, 6956, 7844, 7990, 8695, 9010, 9805, 9964, 12455, 12580, 15980, 17390, 18020, 19610, 24910, 29563, 33337, 34780, 39220, 42347, 49820, 59126, 66674, 84694, 92167, 118252, 133348, 147815, 166685, 169388, 184334, 211735, 295630, 333370, 368668, 423470, 460835, 591260, 666740, 846940, 921670, 1566839, 1843340, 3133678, 6267356, 7834195, 15668390, 31336780]

約数ペア:

[(1, 31336780), (2, 15668390), (4, 7834195), (5, 6267356), (10, 3133678), (17, 1843340), (20, 1566839), (34, 921670), (37, 846940), (47, 666740), (53, 591260), (68, 460835), (74, 423470), (85, 368668), (94, 333370), (106, 295630), (148, 211735), (170, 184334), (185, 169388), (188, 166685), (212, 147815), (235, 133348), (265, 118252), (340, 92167), (370, 84694), (470, 66674), (530, 59126), (629, 49820), (740, 42347), (799, 39220), (901, 34780), (940, 33337), (1060, 29563), (1258, 24910), (1598, 19610), (1739, 18020), (1802, 17390), (1961, 15980), (2491, 12580), (2516, 12455), (3145, 9964), (3196, 9805), (3478, 9010), (3604, 8695), (3922, 7990), (3995, 7844), (4505, 6956), (4982, 6290)]