19923760

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{127}}^1$

素因数の和:230

約数の個数: 80

約数和(自身を含む): 48854016

約数和(自身を除く): 28930256

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 53, 74, 80, 106, 127, 148, 185, 212, 254, 265, 296, 370, 424, 508, 530, 592, 635, 740, 848, 1016, 1060, 1270, 1480, 1961, 2032, 2120, 2540, 2960, 3922, 4240, 4699, 5080, 6731, 7844, 9398, 9805, 10160, 13462, 15688, 18796, 19610, 23495, 26924, 31376, 33655, 37592, 39220, 46990, 53848, 67310, 75184, 78440, 93980, 107696, 134620, 156880, 187960, 249047, 269240, 375920, 498094, 538480, 996188, 1245235, 1992376, 2490470, 3984752, 4980940, 9961880, 19923760]

約数ペア:

[(1, 19923760), (2, 9961880), (4, 4980940), (5, 3984752), (8, 2490470), (10, 1992376), (16, 1245235), (20, 996188), (37, 538480), (40, 498094), (53, 375920), (74, 269240), (80, 249047), (106, 187960), (127, 156880), (148, 134620), (185, 107696), (212, 93980), (254, 78440), (265, 75184), (296, 67310), (370, 53848), (424, 46990), (508, 39220), (530, 37592), (592, 33655), (635, 31376), (740, 26924), (848, 23495), (1016, 19610), (1060, 18796), (1270, 15688), (1480, 13462), (1961, 10160), (2032, 9805), (2120, 9398), (2540, 7844), (2960, 6731), (3922, 5080), (4240, 4699)]