28075840

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{397}}^1$

素因数の和:444

約数の個数: 112

約数和(自身を含む): 76425552

約数和(自身を除く): 48349712

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 17, 20, 26, 32, 34, 40, 52, 64, 65, 68, 80, 85, 104, 130, 136, 160, 170, 208, 221, 260, 272, 320, 340, 397, 416, 442, 520, 544, 680, 794, 832, 884, 1040, 1088, 1105, 1360, 1588, 1768, 1985, 2080, 2210, 2720, 3176, 3536, 3970, 4160, 4420, 5161, 5440, 6352, 6749, 7072, 7940, 8840, 10322, 12704, 13498, 14144, 15880, 17680, 20644, 25408, 25805, 26996, 31760, 33745, 35360, 41288, 51610, 53992, 63520, 67490, 70720, 82576, 87737, 103220, 107984, 127040, 134980, 165152, 175474, 206440, 215968, 269960, 330304, 350948, 412880, 431936, 438685, 539920, 701896, 825760, 877370, 1079840, 1403792, 1651520, 1754740, 2159680, 2807584, 3509480, 5615168, 7018960, 14037920, 28075840]

約数ペア:

[(1, 28075840), (2, 14037920), (4, 7018960), (5, 5615168), (8, 3509480), (10, 2807584), (13, 2159680), (16, 1754740), (17, 1651520), (20, 1403792), (26, 1079840), (32, 877370), (34, 825760), (40, 701896), (52, 539920), (64, 438685), (65, 431936), (68, 412880), (80, 350948), (85, 330304), (104, 269960), (130, 215968), (136, 206440), (160, 175474), (170, 165152), (208, 134980), (221, 127040), (260, 107984), (272, 103220), (320, 87737), (340, 82576), (397, 70720), (416, 67490), (442, 63520), (520, 53992), (544, 51610), (680, 41288), (794, 35360), (832, 33745), (884, 31760), (1040, 26996), (1088, 25805), (1105, 25408), (1360, 20644), (1588, 17680), (1768, 15880), (1985, 14144), (2080, 13498), (2210, 12704), (2720, 10322), (3176, 8840), (3536, 7940), (3970, 7072), (4160, 6749), (4420, 6352), (5161, 5440)]