28811250

素因数分解:

$2^1\times 3^2\times 5^4\times {\mathrm{13}}^1\times {\mathrm{197}}^1$

素因数の和:238

約数の個数: 120

約数和(自身を含む): 84432348

約数和(自身を除く): 55621098

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 25, 26, 30, 39, 45, 50, 65, 75, 78, 90, 117, 125, 130, 150, 195, 197, 225, 234, 250, 325, 375, 390, 394, 450, 585, 591, 625, 650, 750, 975, 985, 1125, 1170, 1182, 1250, 1625, 1773, 1875, 1950, 1970, 2250, 2561, 2925, 2955, 3250, 3546, 3750, 4875, 4925, 5122, 5625, 5850, 5910, 7683, 8125, 8865, 9750, 9850, 11250, 12805, 14625, 14775, 15366, 16250, 17730, 23049, 24375, 24625, 25610, 29250, 29550, 38415, 44325, 46098, 48750, 49250, 64025, 73125, 73875, 76830, 88650, 115245, 123125, 128050, 146250, 147750, 192075, 221625, 230490, 246250, 320125, 369375, 384150, 443250, 576225, 640250, 738750, 960375, 1108125, 1152450, 1600625, 1920750, 2216250, 2881125, 3201250, 4801875, 5762250, 9603750, 14405625, 28811250]

約数ペア:

[(1, 28811250), (2, 14405625), (3, 9603750), (5, 5762250), (6, 4801875), (9, 3201250), (10, 2881125), (13, 2216250), (15, 1920750), (18, 1600625), (25, 1152450), (26, 1108125), (30, 960375), (39, 738750), (45, 640250), (50, 576225), (65, 443250), (75, 384150), (78, 369375), (90, 320125), (117, 246250), (125, 230490), (130, 221625), (150, 192075), (195, 147750), (197, 146250), (225, 128050), (234, 123125), (250, 115245), (325, 88650), (375, 76830), (390, 73875), (394, 73125), (450, 64025), (585, 49250), (591, 48750), (625, 46098), (650, 44325), (750, 38415), (975, 29550), (985, 29250), (1125, 25610), (1170, 24625), (1182, 24375), (1250, 23049), (1625, 17730), (1773, 16250), (1875, 15366), (1950, 14775), (1970, 14625), (2250, 12805), (2561, 11250), (2925, 9850), (2955, 9750), (3250, 8865), (3546, 8125), (3750, 7683), (4875, 5910), (4925, 5850), (5122, 5625)]