209498940

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{2917}}^1$

素因数の和:2961

約数の個数: 192

約数和(自身を含む): 784358400

約数和(自身を除く): 574859460

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 19, 20, 21, 27, 28, 30, 35, 36, 38, 42, 45, 54, 57, 60, 63, 70, 76, 84, 90, 95, 105, 108, 114, 126, 133, 135, 140, 171, 180, 189, 190, 210, 228, 252, 266, 270, 285, 315, 342, 378, 380, 399, 420, 513, 532, 540, 570, 630, 665, 684, 756, 798, 855, 945, 1026, 1140, 1197, 1260, 1330, 1596, 1710, 1890, 1995, 2052, 2394, 2565, 2660, 2917, 3420, 3591, 3780, 3990, 4788, 5130, 5834, 5985, 7182, 7980, 8751, 10260, 11668, 11970, 14364, 14585, 17502, 17955, 20419, 23940, 26253, 29170, 35004, 35910, 40838, 43755, 52506, 55423, 58340, 61257, 71820, 78759, 81676, 87510, 102095, 105012, 110846, 122514, 131265, 157518, 166269, 175020, 183771, 204190, 221692, 245028, 262530, 277115, 306285, 315036, 332538, 367542, 387961, 393795, 408380, 498807, 525060, 551313, 554230, 612570, 665076, 735084, 775922, 787590, 831345, 918855, 997614, 1102626, 1108460, 1163883, 1225140, 1496421, 1551844, 1575180, 1662690, 1837710, 1939805, 1995228, 2205252, 2327766, 2494035, 2756565, 2992842, 3325380, 3491649, 3675420, 3879610, 4655532, 4988070, 5513130, 5819415, 5985684, 6983298, 7482105, 7759220, 9976140, 10474947, 11026260, 11638830, 13966596, 14964210, 17458245, 20949894, 23277660, 29928420, 34916490, 41899788, 52374735, 69832980, 104749470, 209498940]

約数ペア:

[(1, 209498940), (2, 104749470), (3, 69832980), (4, 52374735), (5, 41899788), (6, 34916490), (7, 29928420), (9, 23277660), (10, 20949894), (12, 17458245), (14, 14964210), (15, 13966596), (18, 11638830), (19, 11026260), (20, 10474947), (21, 9976140), (27, 7759220), (28, 7482105), (30, 6983298), (35, 5985684), (36, 5819415), (38, 5513130), (42, 4988070), (45, 4655532), (54, 3879610), (57, 3675420), (60, 3491649), (63, 3325380), (70, 2992842), (76, 2756565), (84, 2494035), (90, 2327766), (95, 2205252), (105, 1995228), (108, 1939805), (114, 1837710), (126, 1662690), (133, 1575180), (135, 1551844), (140, 1496421), (171, 1225140), (180, 1163883), (189, 1108460), (190, 1102626), (210, 997614), (228, 918855), (252, 831345), (266, 787590), (270, 775922), (285, 735084), (315, 665076), (342, 612570), (378, 554230), (380, 551313), (399, 525060), (420, 498807), (513, 408380), (532, 393795), (540, 387961), (570, 367542), (630, 332538), (665, 315036), (684, 306285), (756, 277115), (798, 262530), (855, 245028), (945, 221692), (1026, 204190), (1140, 183771), (1197, 175020), (1260, 166269), (1330, 157518), (1596, 131265), (1710, 122514), (1890, 110846), (1995, 105012), (2052, 102095), (2394, 87510), (2565, 81676), (2660, 78759), (2917, 71820), (3420, 61257), (3591, 58340), (3780, 55423), (3990, 52506), (4788, 43755), (5130, 40838), (5834, 35910), (5985, 35004), (7182, 29170), (7980, 26253), (8751, 23940), (10260, 20419), (11668, 17955), (11970, 17502), (14364, 14585)]