128138640

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{857}}^1$

素因数の和:969

約数の個数: 160

約数和(自身を含む): 459613440

約数和(自身を除く): 331474800

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 89, 105, 112, 120, 140, 168, 178, 210, 240, 267, 280, 336, 356, 420, 445, 534, 560, 623, 712, 840, 857, 890, 1068, 1246, 1335, 1424, 1680, 1714, 1780, 1869, 2136, 2492, 2571, 2670, 3115, 3428, 3560, 3738, 4272, 4285, 4984, 5142, 5340, 5999, 6230, 6856, 7120, 7476, 8570, 9345, 9968, 10284, 10680, 11998, 12460, 12855, 13712, 14952, 17140, 17997, 18690, 20568, 21360, 23996, 24920, 25710, 29904, 29995, 34280, 35994, 37380, 41136, 47992, 49840, 51420, 59990, 68560, 71988, 74760, 76273, 89985, 95984, 102840, 119980, 143976, 149520, 152546, 179970, 205680, 228819, 239960, 287952, 305092, 359940, 381365, 457638, 479920, 533911, 610184, 719880, 762730, 915276, 1067822, 1144095, 1220368, 1439760, 1525460, 1601733, 1830552, 2135644, 2288190, 2669555, 3050920, 3203466, 3661104, 4271288, 4576380, 5339110, 6101840, 6406932, 8008665, 8542576, 9152760, 10678220, 12813864, 16017330, 18305520, 21356440, 25627728, 32034660, 42712880, 64069320, 128138640]

約数ペア:

[(1, 128138640), (2, 64069320), (3, 42712880), (4, 32034660), (5, 25627728), (6, 21356440), (7, 18305520), (8, 16017330), (10, 12813864), (12, 10678220), (14, 9152760), (15, 8542576), (16, 8008665), (20, 6406932), (21, 6101840), (24, 5339110), (28, 4576380), (30, 4271288), (35, 3661104), (40, 3203466), (42, 3050920), (48, 2669555), (56, 2288190), (60, 2135644), (70, 1830552), (80, 1601733), (84, 1525460), (89, 1439760), (105, 1220368), (112, 1144095), (120, 1067822), (140, 915276), (168, 762730), (178, 719880), (210, 610184), (240, 533911), (267, 479920), (280, 457638), (336, 381365), (356, 359940), (420, 305092), (445, 287952), (534, 239960), (560, 228819), (623, 205680), (712, 179970), (840, 152546), (857, 149520), (890, 143976), (1068, 119980), (1246, 102840), (1335, 95984), (1424, 89985), (1680, 76273), (1714, 74760), (1780, 71988), (1869, 68560), (2136, 59990), (2492, 51420), (2571, 49840), (2670, 47992), (3115, 41136), (3428, 37380), (3560, 35994), (3738, 34280), (4272, 29995), (4285, 29904), (4984, 25710), (5142, 24920), (5340, 23996), (5999, 21360), (6230, 20568), (6856, 18690), (7120, 17997), (7476, 17140), (8570, 14952), (9345, 13712), (9968, 12855), (10284, 12460), (10680, 11998)]