28620180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{199}}^1$

素因数の和:278

約数の個数: 144

約数和(自身を含む): 94348800

約数和(自身を除く): 65728620

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 30, 34, 36, 45, 47, 51, 60, 68, 85, 90, 94, 102, 141, 153, 170, 180, 188, 199, 204, 235, 255, 282, 306, 340, 398, 423, 470, 510, 564, 597, 612, 705, 765, 796, 799, 846, 940, 995, 1020, 1194, 1410, 1530, 1598, 1692, 1791, 1990, 2115, 2388, 2397, 2820, 2985, 3060, 3196, 3383, 3582, 3980, 3995, 4230, 4794, 5970, 6766, 7164, 7191, 7990, 8460, 8955, 9353, 9588, 10149, 11940, 11985, 13532, 14382, 15980, 16915, 17910, 18706, 20298, 23970, 28059, 28764, 30447, 33830, 35820, 35955, 37412, 40596, 46765, 47940, 50745, 56118, 60894, 67660, 71910, 84177, 93530, 101490, 112236, 121788, 140295, 143820, 152235, 159001, 168354, 187060, 202980, 280590, 304470, 318002, 336708, 420885, 477003, 561180, 608940, 636004, 795005, 841770, 954006, 1431009, 1590010, 1683540, 1908012, 2385015, 2862018, 3180020, 4770030, 5724036, 7155045, 9540060, 14310090, 28620180]

約数ペア:

[(1, 28620180), (2, 14310090), (3, 9540060), (4, 7155045), (5, 5724036), (6, 4770030), (9, 3180020), (10, 2862018), (12, 2385015), (15, 1908012), (17, 1683540), (18, 1590010), (20, 1431009), (30, 954006), (34, 841770), (36, 795005), (45, 636004), (47, 608940), (51, 561180), (60, 477003), (68, 420885), (85, 336708), (90, 318002), (94, 304470), (102, 280590), (141, 202980), (153, 187060), (170, 168354), (180, 159001), (188, 152235), (199, 143820), (204, 140295), (235, 121788), (255, 112236), (282, 101490), (306, 93530), (340, 84177), (398, 71910), (423, 67660), (470, 60894), (510, 56118), (564, 50745), (597, 47940), (612, 46765), (705, 40596), (765, 37412), (796, 35955), (799, 35820), (846, 33830), (940, 30447), (995, 28764), (1020, 28059), (1194, 23970), (1410, 20298), (1530, 18706), (1598, 17910), (1692, 16915), (1791, 15980), (1990, 14382), (2115, 13532), (2388, 11985), (2397, 11940), (2820, 10149), (2985, 9588), (3060, 9353), (3196, 8955), (3383, 8460), (3582, 7990), (3980, 7191), (3995, 7164), (4230, 6766), (4794, 5970)]