81431856

素因数分解:

$2^4\times 3^2\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{509}}^1$

素因数の和:635

約数の個数: 120

約数和(自身を含む): 251568720

約数和(自身を除く): 170136864

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 16, 18, 22, 24, 33, 36, 44, 48, 66, 72, 88, 99, 101, 132, 144, 176, 198, 202, 264, 303, 396, 404, 509, 528, 606, 792, 808, 909, 1018, 1111, 1212, 1527, 1584, 1616, 1818, 2036, 2222, 2424, 3054, 3333, 3636, 4072, 4444, 4581, 4848, 5599, 6108, 6666, 7272, 8144, 8888, 9162, 9999, 11198, 12216, 13332, 14544, 16797, 17776, 18324, 19998, 22396, 24432, 26664, 33594, 36648, 39996, 44792, 50391, 51409, 53328, 67188, 73296, 79992, 89584, 100782, 102818, 134376, 154227, 159984, 201564, 205636, 268752, 308454, 403128, 411272, 462681, 565499, 616908, 806256, 822544, 925362, 1130998, 1233816, 1696497, 1850724, 2261996, 2467632, 3392994, 3701448, 4523992, 5089491, 6785988, 7402896, 9047984, 10178982, 13571976, 20357964, 27143952, 40715928, 81431856]

約数ペア:

[(1, 81431856), (2, 40715928), (3, 27143952), (4, 20357964), (6, 13571976), (8, 10178982), (9, 9047984), (11, 7402896), (12, 6785988), (16, 5089491), (18, 4523992), (22, 3701448), (24, 3392994), (33, 2467632), (36, 2261996), (44, 1850724), (48, 1696497), (66, 1233816), (72, 1130998), (88, 925362), (99, 822544), (101, 806256), (132, 616908), (144, 565499), (176, 462681), (198, 411272), (202, 403128), (264, 308454), (303, 268752), (396, 205636), (404, 201564), (509, 159984), (528, 154227), (606, 134376), (792, 102818), (808, 100782), (909, 89584), (1018, 79992), (1111, 73296), (1212, 67188), (1527, 53328), (1584, 51409), (1616, 50391), (1818, 44792), (2036, 39996), (2222, 36648), (2424, 33594), (3054, 26664), (3333, 24432), (3636, 22396), (4072, 19998), (4444, 18324), (4581, 17776), (4848, 16797), (5599, 14544), (6108, 13332), (6666, 12216), (7272, 11198), (8144, 9999), (8888, 9162)]