81172008

素因数分解:

$2^3\times 3^2\times {\mathrm{17}}^2\times {\mathrm{47}}^1\times {\mathrm{83}}^1$

素因数の和:176

約数の個数: 144

約数和(自身を含む): 241375680

約数和(自身を除く): 160203672

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 17, 18, 24, 34, 36, 47, 51, 68, 72, 83, 94, 102, 136, 141, 153, 166, 188, 204, 249, 282, 289, 306, 332, 376, 408, 423, 498, 564, 578, 612, 664, 747, 799, 846, 867, 996, 1128, 1156, 1224, 1411, 1494, 1598, 1692, 1734, 1992, 2312, 2397, 2601, 2822, 2988, 3196, 3384, 3468, 3901, 4233, 4794, 5202, 5644, 5976, 6392, 6936, 7191, 7802, 8466, 9588, 10404, 11288, 11703, 12699, 13583, 14382, 15604, 16932, 19176, 20808, 23406, 23987, 25398, 27166, 28764, 31208, 33864, 35109, 40749, 46812, 47974, 50796, 54332, 57528, 66317, 70218, 71961, 81498, 93624, 95948, 101592, 108664, 122247, 132634, 140436, 143922, 162996, 191896, 198951, 215883, 244494, 265268, 280872, 287844, 325992, 397902, 431766, 488988, 530536, 575688, 596853, 795804, 863532, 977976, 1127389, 1193706, 1591608, 1727064, 2254778, 2387412, 3382167, 4509556, 4774824, 6764334, 9019112, 10146501, 13528668, 20293002, 27057336, 40586004, 81172008]

約数ペア:

[(1, 81172008), (2, 40586004), (3, 27057336), (4, 20293002), (6, 13528668), (8, 10146501), (9, 9019112), (12, 6764334), (17, 4774824), (18, 4509556), (24, 3382167), (34, 2387412), (36, 2254778), (47, 1727064), (51, 1591608), (68, 1193706), (72, 1127389), (83, 977976), (94, 863532), (102, 795804), (136, 596853), (141, 575688), (153, 530536), (166, 488988), (188, 431766), (204, 397902), (249, 325992), (282, 287844), (289, 280872), (306, 265268), (332, 244494), (376, 215883), (408, 198951), (423, 191896), (498, 162996), (564, 143922), (578, 140436), (612, 132634), (664, 122247), (747, 108664), (799, 101592), (846, 95948), (867, 93624), (996, 81498), (1128, 71961), (1156, 70218), (1224, 66317), (1411, 57528), (1494, 54332), (1598, 50796), (1692, 47974), (1734, 46812), (1992, 40749), (2312, 35109), (2397, 33864), (2601, 31208), (2822, 28764), (2988, 27166), (3196, 25398), (3384, 23987), (3468, 23406), (3901, 20808), (4233, 19176), (4794, 16932), (5202, 15604), (5644, 14382), (5976, 13583), (6392, 12699), (6936, 11703), (7191, 11288), (7802, 10404), (8466, 9588)]