28779900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1$

素因数の和:180

約数の個数: 144

約数和(自身を含む): 89827584

約数和(自身を除く): 61047684

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 25, 30, 43, 46, 50, 60, 69, 75, 86, 92, 97, 100, 115, 129, 138, 150, 172, 194, 215, 230, 258, 276, 291, 300, 345, 388, 430, 460, 485, 516, 575, 582, 645, 690, 860, 970, 989, 1075, 1150, 1164, 1290, 1380, 1455, 1725, 1940, 1978, 2150, 2231, 2300, 2425, 2580, 2910, 2967, 3225, 3450, 3956, 4171, 4300, 4462, 4850, 4945, 5820, 5934, 6450, 6693, 6900, 7275, 8342, 8924, 9700, 9890, 11155, 11868, 12513, 12900, 13386, 14550, 14835, 16684, 19780, 20855, 22310, 24725, 25026, 26772, 29100, 29670, 33465, 41710, 44620, 49450, 50052, 55775, 59340, 62565, 66930, 74175, 83420, 95933, 98900, 104275, 111550, 125130, 133860, 148350, 167325, 191866, 208550, 223100, 250260, 287799, 296700, 312825, 334650, 383732, 417100, 479665, 575598, 625650, 669300, 959330, 1151196, 1251300, 1438995, 1918660, 2398325, 2877990, 4796650, 5755980, 7194975, 9593300, 14389950, 28779900]

約数ペア:

[(1, 28779900), (2, 14389950), (3, 9593300), (4, 7194975), (5, 5755980), (6, 4796650), (10, 2877990), (12, 2398325), (15, 1918660), (20, 1438995), (23, 1251300), (25, 1151196), (30, 959330), (43, 669300), (46, 625650), (50, 575598), (60, 479665), (69, 417100), (75, 383732), (86, 334650), (92, 312825), (97, 296700), (100, 287799), (115, 250260), (129, 223100), (138, 208550), (150, 191866), (172, 167325), (194, 148350), (215, 133860), (230, 125130), (258, 111550), (276, 104275), (291, 98900), (300, 95933), (345, 83420), (388, 74175), (430, 66930), (460, 62565), (485, 59340), (516, 55775), (575, 50052), (582, 49450), (645, 44620), (690, 41710), (860, 33465), (970, 29670), (989, 29100), (1075, 26772), (1150, 25026), (1164, 24725), (1290, 22310), (1380, 20855), (1455, 19780), (1725, 16684), (1940, 14835), (1978, 14550), (2150, 13386), (2231, 12900), (2300, 12513), (2425, 11868), (2580, 11155), (2910, 9890), (2967, 9700), (3225, 8924), (3450, 8342), (3956, 7275), (4171, 6900), (4300, 6693), (4462, 6450), (4850, 5934), (4945, 5820)]