20168460

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{13}}^3\times {\mathrm{17}}^1$

素因数の和:74

約数の個数: 192

約数和(自身を含む): 71971200

約数和(自身を除く): 51802740

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 17, 18, 20, 26, 27, 30, 34, 36, 39, 45, 51, 52, 54, 60, 65, 68, 78, 85, 90, 102, 108, 117, 130, 135, 153, 156, 169, 170, 180, 195, 204, 221, 234, 255, 260, 270, 306, 338, 340, 351, 390, 442, 459, 468, 507, 510, 540, 585, 612, 663, 676, 702, 765, 780, 845, 884, 918, 1014, 1020, 1105, 1170, 1326, 1404, 1521, 1530, 1690, 1755, 1836, 1989, 2028, 2197, 2210, 2295, 2340, 2535, 2652, 2873, 3042, 3060, 3315, 3380, 3510, 3978, 4394, 4420, 4563, 4590, 5070, 5746, 5967, 6084, 6591, 6630, 7020, 7605, 7956, 8619, 8788, 9126, 9180, 9945, 10140, 10985, 11492, 11934, 13182, 13260, 14365, 15210, 17238, 18252, 19773, 19890, 21970, 22815, 23868, 25857, 26364, 28730, 29835, 30420, 32955, 34476, 37349, 39546, 39780, 43095, 43940, 45630, 51714, 57460, 59319, 59670, 65910, 74698, 77571, 79092, 86190, 91260, 98865, 103428, 112047, 118638, 119340, 129285, 131820, 149396, 155142, 172380, 186745, 197730, 224094, 237276, 258570, 296595, 310284, 336141, 373490, 387855, 395460, 448188, 517140, 560235, 593190, 672282, 746980, 775710, 1008423, 1120470, 1186380, 1344564, 1551420, 1680705, 2016846, 2240940, 3361410, 4033692, 5042115, 6722820, 10084230, 20168460]

約数ペア:

[(1, 20168460), (2, 10084230), (3, 6722820), (4, 5042115), (5, 4033692), (6, 3361410), (9, 2240940), (10, 2016846), (12, 1680705), (13, 1551420), (15, 1344564), (17, 1186380), (18, 1120470), (20, 1008423), (26, 775710), (27, 746980), (30, 672282), (34, 593190), (36, 560235), (39, 517140), (45, 448188), (51, 395460), (52, 387855), (54, 373490), (60, 336141), (65, 310284), (68, 296595), (78, 258570), (85, 237276), (90, 224094), (102, 197730), (108, 186745), (117, 172380), (130, 155142), (135, 149396), (153, 131820), (156, 129285), (169, 119340), (170, 118638), (180, 112047), (195, 103428), (204, 98865), (221, 91260), (234, 86190), (255, 79092), (260, 77571), (270, 74698), (306, 65910), (338, 59670), (340, 59319), (351, 57460), (390, 51714), (442, 45630), (459, 43940), (468, 43095), (507, 39780), (510, 39546), (540, 37349), (585, 34476), (612, 32955), (663, 30420), (676, 29835), (702, 28730), (765, 26364), (780, 25857), (845, 23868), (884, 22815), (918, 21970), (1014, 19890), (1020, 19773), (1105, 18252), (1170, 17238), (1326, 15210), (1404, 14365), (1521, 13260), (1530, 13182), (1690, 11934), (1755, 11492), (1836, 10985), (1989, 10140), (2028, 9945), (2197, 9180), (2210, 9126), (2295, 8788), (2340, 8619), (2535, 7956), (2652, 7605), (2873, 7020), (3042, 6630), (3060, 6591), (3315, 6084), (3380, 5967), (3510, 5746), (3978, 5070), (4394, 4590), (4420, 4563)]