19879290

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1$

素因数の和:165

約数の個数: 128

約数和(自身を含む): 57853440

約数和(自身を除く): 37974150

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 17, 18, 27, 30, 34, 45, 51, 54, 61, 71, 85, 90, 102, 122, 135, 142, 153, 170, 183, 213, 255, 270, 305, 306, 355, 366, 426, 459, 510, 549, 610, 639, 710, 765, 915, 918, 1037, 1065, 1098, 1207, 1278, 1530, 1647, 1830, 1917, 2074, 2130, 2295, 2414, 2745, 3111, 3195, 3294, 3621, 3834, 4331, 4590, 5185, 5490, 6035, 6222, 6390, 7242, 8235, 8662, 9333, 9585, 10370, 10863, 12070, 12993, 15555, 16470, 18105, 18666, 19170, 21655, 21726, 25986, 27999, 31110, 32589, 36210, 38979, 43310, 46665, 54315, 55998, 64965, 65178, 73627, 77958, 93330, 108630, 116937, 129930, 139995, 147254, 162945, 194895, 220881, 233874, 279990, 325890, 368135, 389790, 441762, 584685, 662643, 736270, 1104405, 1169370, 1325286, 1987929, 2208810, 3313215, 3975858, 6626430, 9939645, 19879290]

約数ペア:

[(1, 19879290), (2, 9939645), (3, 6626430), (5, 3975858), (6, 3313215), (9, 2208810), (10, 1987929), (15, 1325286), (17, 1169370), (18, 1104405), (27, 736270), (30, 662643), (34, 584685), (45, 441762), (51, 389790), (54, 368135), (61, 325890), (71, 279990), (85, 233874), (90, 220881), (102, 194895), (122, 162945), (135, 147254), (142, 139995), (153, 129930), (170, 116937), (183, 108630), (213, 93330), (255, 77958), (270, 73627), (305, 65178), (306, 64965), (355, 55998), (366, 54315), (426, 46665), (459, 43310), (510, 38979), (549, 36210), (610, 32589), (639, 31110), (710, 27999), (765, 25986), (915, 21726), (918, 21655), (1037, 19170), (1065, 18666), (1098, 18105), (1207, 16470), (1278, 15555), (1530, 12993), (1647, 12070), (1830, 10863), (1917, 10370), (2074, 9585), (2130, 9333), (2295, 8662), (2414, 8235), (2745, 7242), (3111, 6390), (3195, 6222), (3294, 6035), (3621, 5490), (3834, 5185), (4331, 4590)]