28619820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{223}}^1$

素因数の和:292

約数の個数: 144

約数和(自身を含む): 93929472

約数和(自身を除く): 65309652

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 30, 31, 36, 45, 46, 60, 62, 69, 90, 92, 93, 115, 124, 138, 155, 180, 186, 207, 223, 230, 276, 279, 310, 345, 372, 414, 446, 460, 465, 558, 620, 669, 690, 713, 828, 892, 930, 1035, 1115, 1116, 1338, 1380, 1395, 1426, 1860, 2007, 2070, 2139, 2230, 2676, 2790, 2852, 3345, 3565, 4014, 4140, 4278, 4460, 5129, 5580, 6417, 6690, 6913, 7130, 8028, 8556, 10035, 10258, 10695, 12834, 13380, 13826, 14260, 15387, 20070, 20516, 20739, 21390, 25645, 25668, 27652, 30774, 32085, 34565, 40140, 41478, 42780, 46161, 51290, 61548, 62217, 64170, 69130, 76935, 82956, 92322, 102580, 103695, 124434, 128340, 138260, 153870, 158999, 184644, 207390, 230805, 248868, 307740, 311085, 317998, 414780, 461610, 476997, 622170, 635996, 794995, 923220, 953994, 1244340, 1430991, 1589990, 1907988, 2384985, 2861982, 3179980, 4769970, 5723964, 7154955, 9539940, 14309910, 28619820]

約数ペア:

[(1, 28619820), (2, 14309910), (3, 9539940), (4, 7154955), (5, 5723964), (6, 4769970), (9, 3179980), (10, 2861982), (12, 2384985), (15, 1907988), (18, 1589990), (20, 1430991), (23, 1244340), (30, 953994), (31, 923220), (36, 794995), (45, 635996), (46, 622170), (60, 476997), (62, 461610), (69, 414780), (90, 317998), (92, 311085), (93, 307740), (115, 248868), (124, 230805), (138, 207390), (155, 184644), (180, 158999), (186, 153870), (207, 138260), (223, 128340), (230, 124434), (276, 103695), (279, 102580), (310, 92322), (345, 82956), (372, 76935), (414, 69130), (446, 64170), (460, 62217), (465, 61548), (558, 51290), (620, 46161), (669, 42780), (690, 41478), (713, 40140), (828, 34565), (892, 32085), (930, 30774), (1035, 27652), (1115, 25668), (1116, 25645), (1338, 21390), (1380, 20739), (1395, 20516), (1426, 20070), (1860, 15387), (2007, 14260), (2070, 13826), (2139, 13380), (2230, 12834), (2676, 10695), (2790, 10258), (2852, 10035), (3345, 8556), (3565, 8028), (4014, 7130), (4140, 6913), (4278, 6690), (4460, 6417), (5129, 5580)]