20479968

素因数分解:

$2^5\times 3^2\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1$

素因数の和:169

約数の個数: 144

約数和(自身を含む): 63685440

約数和(自身を除く): 43205472

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 17, 18, 24, 32, 34, 36, 47, 48, 51, 68, 72, 89, 94, 96, 102, 136, 141, 144, 153, 178, 188, 204, 267, 272, 282, 288, 306, 356, 376, 408, 423, 534, 544, 564, 612, 712, 752, 799, 801, 816, 846, 1068, 1128, 1224, 1424, 1504, 1513, 1598, 1602, 1632, 1692, 2136, 2256, 2397, 2448, 2848, 3026, 3196, 3204, 3384, 4183, 4272, 4512, 4539, 4794, 4896, 6052, 6392, 6408, 6768, 7191, 8366, 8544, 9078, 9588, 12104, 12549, 12784, 12816, 13536, 13617, 14382, 16732, 18156, 19176, 24208, 25098, 25568, 25632, 27234, 28764, 33464, 36312, 37647, 38352, 48416, 50196, 54468, 57528, 66928, 71111, 72624, 75294, 76704, 100392, 108936, 115056, 133856, 142222, 145248, 150588, 200784, 213333, 217872, 230112, 284444, 301176, 401568, 426666, 435744, 568888, 602352, 639999, 853332, 1137776, 1204704, 1279998, 1706664, 2275552, 2559996, 3413328, 5119992, 6826656, 10239984, 20479968]

約数ペア:

[(1, 20479968), (2, 10239984), (3, 6826656), (4, 5119992), (6, 3413328), (8, 2559996), (9, 2275552), (12, 1706664), (16, 1279998), (17, 1204704), (18, 1137776), (24, 853332), (32, 639999), (34, 602352), (36, 568888), (47, 435744), (48, 426666), (51, 401568), (68, 301176), (72, 284444), (89, 230112), (94, 217872), (96, 213333), (102, 200784), (136, 150588), (141, 145248), (144, 142222), (153, 133856), (178, 115056), (188, 108936), (204, 100392), (267, 76704), (272, 75294), (282, 72624), (288, 71111), (306, 66928), (356, 57528), (376, 54468), (408, 50196), (423, 48416), (534, 38352), (544, 37647), (564, 36312), (612, 33464), (712, 28764), (752, 27234), (799, 25632), (801, 25568), (816, 25098), (846, 24208), (1068, 19176), (1128, 18156), (1224, 16732), (1424, 14382), (1504, 13617), (1513, 13536), (1598, 12816), (1602, 12784), (1632, 12549), (1692, 12104), (2136, 9588), (2256, 9078), (2397, 8544), (2448, 8366), (2848, 7191), (3026, 6768), (3196, 6408), (3204, 6392), (3384, 6052), (4183, 4896), (4272, 4794), (4512, 4539)]