19401660

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1$

素因数の和:129

約数の個数: 192

約数和(自身を含む): 66662400

約数和(自身を除く): 47260740

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 27, 30, 31, 36, 38, 45, 54, 57, 60, 61, 62, 76, 90, 93, 95, 108, 114, 122, 124, 135, 155, 171, 180, 183, 186, 190, 228, 244, 270, 279, 285, 305, 310, 342, 366, 372, 380, 465, 513, 540, 549, 558, 570, 589, 610, 620, 684, 732, 837, 855, 915, 930, 1026, 1098, 1116, 1140, 1159, 1178, 1220, 1395, 1647, 1674, 1710, 1767, 1830, 1860, 1891, 2052, 2196, 2318, 2356, 2565, 2745, 2790, 2945, 3294, 3348, 3420, 3477, 3534, 3660, 3782, 4185, 4636, 5130, 5301, 5490, 5580, 5673, 5795, 5890, 6588, 6954, 7068, 7564, 8235, 8370, 8835, 9455, 10260, 10431, 10602, 10980, 11346, 11590, 11780, 13908, 15903, 16470, 16740, 17019, 17385, 17670, 18910, 20862, 21204, 22692, 23180, 26505, 28365, 31293, 31806, 32940, 34038, 34770, 35340, 35929, 37820, 41724, 51057, 52155, 53010, 56730, 62586, 63612, 68076, 69540, 71858, 79515, 85095, 102114, 104310, 106020, 107787, 113460, 125172, 143716, 156465, 159030, 170190, 179645, 204228, 208620, 215574, 255285, 312930, 318060, 323361, 340380, 359290, 431148, 510570, 538935, 625860, 646722, 718580, 970083, 1021140, 1077870, 1293444, 1616805, 1940166, 2155740, 3233610, 3880332, 4850415, 6467220, 9700830, 19401660]

約数ペア:

[(1, 19401660), (2, 9700830), (3, 6467220), (4, 4850415), (5, 3880332), (6, 3233610), (9, 2155740), (10, 1940166), (12, 1616805), (15, 1293444), (18, 1077870), (19, 1021140), (20, 970083), (27, 718580), (30, 646722), (31, 625860), (36, 538935), (38, 510570), (45, 431148), (54, 359290), (57, 340380), (60, 323361), (61, 318060), (62, 312930), (76, 255285), (90, 215574), (93, 208620), (95, 204228), (108, 179645), (114, 170190), (122, 159030), (124, 156465), (135, 143716), (155, 125172), (171, 113460), (180, 107787), (183, 106020), (186, 104310), (190, 102114), (228, 85095), (244, 79515), (270, 71858), (279, 69540), (285, 68076), (305, 63612), (310, 62586), (342, 56730), (366, 53010), (372, 52155), (380, 51057), (465, 41724), (513, 37820), (540, 35929), (549, 35340), (558, 34770), (570, 34038), (589, 32940), (610, 31806), (620, 31293), (684, 28365), (732, 26505), (837, 23180), (855, 22692), (915, 21204), (930, 20862), (1026, 18910), (1098, 17670), (1116, 17385), (1140, 17019), (1159, 16740), (1178, 16470), (1220, 15903), (1395, 13908), (1647, 11780), (1674, 11590), (1710, 11346), (1767, 10980), (1830, 10602), (1860, 10431), (1891, 10260), (2052, 9455), (2196, 8835), (2318, 8370), (2356, 8235), (2565, 7564), (2745, 7068), (2790, 6954), (2945, 6588), (3294, 5890), (3348, 5795), (3420, 5673), (3477, 5580), (3534, 5490), (3660, 5301), (3782, 5130), (4185, 4636)]