61219720

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{197}}^1\times {\mathrm{457}}^1$

素因数の和:682

約数の個数: 64

約数和(自身を含む): 146908080

約数和(自身を除く): 85688360

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 197, 340, 394, 457, 680, 788, 914, 985, 1576, 1828, 1970, 2285, 3349, 3656, 3940, 4570, 6698, 7769, 7880, 9140, 13396, 15538, 16745, 18280, 26792, 31076, 33490, 38845, 62152, 66980, 77690, 90029, 133960, 155380, 180058, 310760, 360116, 450145, 720232, 900290, 1530493, 1800580, 3060986, 3601160, 6121972, 7652465, 12243944, 15304930, 30609860, 61219720]

約数ペア:

[(1, 61219720), (2, 30609860), (4, 15304930), (5, 12243944), (8, 7652465), (10, 6121972), (17, 3601160), (20, 3060986), (34, 1800580), (40, 1530493), (68, 900290), (85, 720232), (136, 450145), (170, 360116), (197, 310760), (340, 180058), (394, 155380), (457, 133960), (680, 90029), (788, 77690), (914, 66980), (985, 62152), (1576, 38845), (1828, 33490), (1970, 31076), (2285, 26792), (3349, 18280), (3656, 16745), (3940, 15538), (4570, 13396), (6698, 9140), (7769, 7880)]