18695880

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{2473}}^1$

素因数の和:2500

約数の個数: 128

約数和(自身を含む): 71251200

約数和(自身を除く): 52555320

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 54, 56, 60, 63, 70, 72, 84, 90, 105, 108, 120, 126, 135, 140, 168, 180, 189, 210, 216, 252, 270, 280, 315, 360, 378, 420, 504, 540, 630, 756, 840, 945, 1080, 1260, 1512, 1890, 2473, 2520, 3780, 4946, 7419, 7560, 9892, 12365, 14838, 17311, 19784, 22257, 24730, 29676, 34622, 37095, 44514, 49460, 51933, 59352, 66771, 69244, 74190, 86555, 89028, 98920, 103866, 111285, 133542, 138488, 148380, 155799, 173110, 178056, 207732, 222570, 259665, 267084, 296760, 311598, 333855, 346220, 415464, 445140, 467397, 519330, 534168, 623196, 667710, 692440, 778995, 890280, 934794, 1038660, 1246392, 1335420, 1557990, 1869588, 2077320, 2336985, 2670840, 3115980, 3739176, 4673970, 6231960, 9347940, 18695880]

約数ペア:

[(1, 18695880), (2, 9347940), (3, 6231960), (4, 4673970), (5, 3739176), (6, 3115980), (7, 2670840), (8, 2336985), (9, 2077320), (10, 1869588), (12, 1557990), (14, 1335420), (15, 1246392), (18, 1038660), (20, 934794), (21, 890280), (24, 778995), (27, 692440), (28, 667710), (30, 623196), (35, 534168), (36, 519330), (40, 467397), (42, 445140), (45, 415464), (54, 346220), (56, 333855), (60, 311598), (63, 296760), (70, 267084), (72, 259665), (84, 222570), (90, 207732), (105, 178056), (108, 173110), (120, 155799), (126, 148380), (135, 138488), (140, 133542), (168, 111285), (180, 103866), (189, 98920), (210, 89028), (216, 86555), (252, 74190), (270, 69244), (280, 66771), (315, 59352), (360, 51933), (378, 49460), (420, 44514), (504, 37095), (540, 34622), (630, 29676), (756, 24730), (840, 22257), (945, 19784), (1080, 17311), (1260, 14838), (1512, 12365), (1890, 9892), (2473, 7560), (2520, 7419), (3780, 4946)]