197541180

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{1999}}^1$

素因数の和:2081

約数の個数: 120

約数和(自身を含む): 630168000

約数和(自身を除く): 432626820

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 61, 81, 90, 108, 122, 135, 162, 180, 183, 244, 270, 305, 324, 366, 405, 540, 549, 610, 732, 810, 915, 1098, 1220, 1620, 1647, 1830, 1999, 2196, 2745, 3294, 3660, 3998, 4941, 5490, 5997, 6588, 7996, 8235, 9882, 9995, 10980, 11994, 16470, 17991, 19764, 19990, 23988, 24705, 29985, 32940, 35982, 39980, 49410, 53973, 59970, 71964, 89955, 98820, 107946, 119940, 121939, 161919, 179910, 215892, 243878, 269865, 323838, 359820, 365817, 487756, 539730, 609695, 647676, 731634, 809595, 1079460, 1097451, 1219390, 1463268, 1619190, 1829085, 2194902, 2438780, 3238380, 3292353, 3658170, 4389804, 5487255, 6584706, 7316340, 9877059, 10974510, 13169412, 16461765, 19754118, 21949020, 32923530, 39508236, 49385295, 65847060, 98770590, 197541180]

約数ペア:

[(1, 197541180), (2, 98770590), (3, 65847060), (4, 49385295), (5, 39508236), (6, 32923530), (9, 21949020), (10, 19754118), (12, 16461765), (15, 13169412), (18, 10974510), (20, 9877059), (27, 7316340), (30, 6584706), (36, 5487255), (45, 4389804), (54, 3658170), (60, 3292353), (61, 3238380), (81, 2438780), (90, 2194902), (108, 1829085), (122, 1619190), (135, 1463268), (162, 1219390), (180, 1097451), (183, 1079460), (244, 809595), (270, 731634), (305, 647676), (324, 609695), (366, 539730), (405, 487756), (540, 365817), (549, 359820), (610, 323838), (732, 269865), (810, 243878), (915, 215892), (1098, 179910), (1220, 161919), (1620, 121939), (1647, 119940), (1830, 107946), (1999, 98820), (2196, 89955), (2745, 71964), (3294, 59970), (3660, 53973), (3998, 49410), (4941, 39980), (5490, 35982), (5997, 32940), (6588, 29985), (7996, 24705), (8235, 23988), (9882, 19990), (9995, 19764), (10980, 17991), (11994, 16470)]