72220920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{137}}^1\times {\mathrm{191}}^1$

素因数の和:365

約数の個数: 128

約数和(自身を含む): 228925440

約数和(自身を除く): 156704520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 40, 46, 60, 69, 92, 115, 120, 137, 138, 184, 191, 230, 274, 276, 345, 382, 411, 460, 548, 552, 573, 685, 690, 764, 822, 920, 955, 1096, 1146, 1370, 1380, 1528, 1644, 1910, 2055, 2292, 2740, 2760, 2865, 3151, 3288, 3820, 4110, 4393, 4584, 5480, 5730, 6302, 7640, 8220, 8786, 9453, 11460, 12604, 13179, 15755, 16440, 17572, 18906, 21965, 22920, 25208, 26167, 26358, 31510, 35144, 37812, 43930, 47265, 52334, 52716, 63020, 65895, 75624, 78501, 87860, 94530, 104668, 105432, 126040, 130835, 131790, 157002, 175720, 189060, 209336, 261670, 263580, 314004, 378120, 392505, 523340, 527160, 601841, 628008, 785010, 1046680, 1203682, 1570020, 1805523, 2407364, 3009205, 3140040, 3611046, 4814728, 6018410, 7222092, 9027615, 12036820, 14444184, 18055230, 24073640, 36110460, 72220920]

約数ペア:

[(1, 72220920), (2, 36110460), (3, 24073640), (4, 18055230), (5, 14444184), (6, 12036820), (8, 9027615), (10, 7222092), (12, 6018410), (15, 4814728), (20, 3611046), (23, 3140040), (24, 3009205), (30, 2407364), (40, 1805523), (46, 1570020), (60, 1203682), (69, 1046680), (92, 785010), (115, 628008), (120, 601841), (137, 527160), (138, 523340), (184, 392505), (191, 378120), (230, 314004), (274, 263580), (276, 261670), (345, 209336), (382, 189060), (411, 175720), (460, 157002), (548, 131790), (552, 130835), (573, 126040), (685, 105432), (690, 104668), (764, 94530), (822, 87860), (920, 78501), (955, 75624), (1096, 65895), (1146, 63020), (1370, 52716), (1380, 52334), (1528, 47265), (1644, 43930), (1910, 37812), (2055, 35144), (2292, 31510), (2740, 26358), (2760, 26167), (2865, 25208), (3151, 22920), (3288, 21965), (3820, 18906), (4110, 17572), (4393, 16440), (4584, 15755), (5480, 13179), (5730, 12604), (6302, 11460), (7640, 9453), (8220, 8786)]