18820620

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{383}}^1$

素因数の和:421

約数の個数: 192

約数和(自身を含む): 72253440

約数和(自身を除く): 53432820

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 13, 14, 15, 18, 20, 21, 26, 27, 28, 30, 35, 36, 39, 42, 45, 52, 54, 60, 63, 65, 70, 78, 84, 90, 91, 105, 108, 117, 126, 130, 135, 140, 156, 180, 182, 189, 195, 210, 234, 252, 260, 270, 273, 315, 351, 364, 378, 383, 390, 420, 455, 468, 540, 546, 585, 630, 702, 756, 766, 780, 819, 910, 945, 1092, 1149, 1170, 1260, 1365, 1404, 1532, 1638, 1755, 1820, 1890, 1915, 2298, 2340, 2457, 2681, 2730, 3276, 3447, 3510, 3780, 3830, 4095, 4596, 4914, 4979, 5362, 5460, 5745, 6894, 7020, 7660, 8043, 8190, 9828, 9958, 10341, 10724, 11490, 12285, 13405, 13788, 14937, 16086, 16380, 17235, 19916, 20682, 22980, 24129, 24570, 24895, 26810, 29874, 32172, 34470, 34853, 40215, 41364, 44811, 48258, 49140, 49790, 51705, 53620, 59748, 68940, 69706, 72387, 74685, 80430, 89622, 96516, 99580, 103410, 104559, 120645, 134433, 139412, 144774, 149370, 160860, 174265, 179244, 206820, 209118, 224055, 241290, 268866, 289548, 298740, 313677, 348530, 361935, 418236, 448110, 482580, 522795, 537732, 627354, 672165, 697060, 723870, 896220, 941031, 1045590, 1254708, 1344330, 1447740, 1568385, 1882062, 2091180, 2688660, 3136770, 3764124, 4705155, 6273540, 9410310, 18820620]

約数ペア:

[(1, 18820620), (2, 9410310), (3, 6273540), (4, 4705155), (5, 3764124), (6, 3136770), (7, 2688660), (9, 2091180), (10, 1882062), (12, 1568385), (13, 1447740), (14, 1344330), (15, 1254708), (18, 1045590), (20, 941031), (21, 896220), (26, 723870), (27, 697060), (28, 672165), (30, 627354), (35, 537732), (36, 522795), (39, 482580), (42, 448110), (45, 418236), (52, 361935), (54, 348530), (60, 313677), (63, 298740), (65, 289548), (70, 268866), (78, 241290), (84, 224055), (90, 209118), (91, 206820), (105, 179244), (108, 174265), (117, 160860), (126, 149370), (130, 144774), (135, 139412), (140, 134433), (156, 120645), (180, 104559), (182, 103410), (189, 99580), (195, 96516), (210, 89622), (234, 80430), (252, 74685), (260, 72387), (270, 69706), (273, 68940), (315, 59748), (351, 53620), (364, 51705), (378, 49790), (383, 49140), (390, 48258), (420, 44811), (455, 41364), (468, 40215), (540, 34853), (546, 34470), (585, 32172), (630, 29874), (702, 26810), (756, 24895), (766, 24570), (780, 24129), (819, 22980), (910, 20682), (945, 19916), (1092, 17235), (1149, 16380), (1170, 16086), (1260, 14937), (1365, 13788), (1404, 13405), (1532, 12285), (1638, 11490), (1755, 10724), (1820, 10341), (1890, 9958), (1915, 9828), (2298, 8190), (2340, 8043), (2457, 7660), (2681, 7020), (2730, 6894), (3276, 5745), (3447, 5460), (3510, 5362), (3780, 4979), (3830, 4914), (4095, 4596)]