64977920

素因数分解:

$2^{10}\times 5^1\times 7^3\times {\mathrm{37}}^1$

素因数の和:83

約数の個数: 176

約数和(自身を含む): 186686400

約数和(自身を除く): 121708480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 37, 40, 49, 56, 64, 70, 74, 80, 98, 112, 128, 140, 148, 160, 185, 196, 224, 245, 256, 259, 280, 296, 320, 343, 370, 392, 448, 490, 512, 518, 560, 592, 640, 686, 740, 784, 896, 980, 1024, 1036, 1120, 1184, 1280, 1295, 1372, 1480, 1568, 1715, 1792, 1813, 1960, 2072, 2240, 2368, 2560, 2590, 2744, 2960, 3136, 3430, 3584, 3626, 3920, 4144, 4480, 4736, 5120, 5180, 5488, 5920, 6272, 6860, 7168, 7252, 7840, 8288, 8960, 9065, 9472, 10360, 10976, 11840, 12544, 12691, 13720, 14504, 15680, 16576, 17920, 18130, 18944, 20720, 21952, 23680, 25088, 25382, 27440, 29008, 31360, 33152, 35840, 36260, 37888, 41440, 43904, 47360, 50176, 50764, 54880, 58016, 62720, 63455, 66304, 72520, 82880, 87808, 94720, 101528, 109760, 116032, 125440, 126910, 132608, 145040, 165760, 175616, 189440, 203056, 219520, 232064, 250880, 253820, 265216, 290080, 331520, 351232, 406112, 439040, 464128, 507640, 580160, 663040, 812224, 878080, 928256, 1015280, 1160320, 1326080, 1624448, 1756160, 1856512, 2030560, 2320640, 3248896, 4061120, 4641280, 6497792, 8122240, 9282560, 12995584, 16244480, 32488960, 64977920]

約数ペア:

[(1, 64977920), (2, 32488960), (4, 16244480), (5, 12995584), (7, 9282560), (8, 8122240), (10, 6497792), (14, 4641280), (16, 4061120), (20, 3248896), (28, 2320640), (32, 2030560), (35, 1856512), (37, 1756160), (40, 1624448), (49, 1326080), (56, 1160320), (64, 1015280), (70, 928256), (74, 878080), (80, 812224), (98, 663040), (112, 580160), (128, 507640), (140, 464128), (148, 439040), (160, 406112), (185, 351232), (196, 331520), (224, 290080), (245, 265216), (256, 253820), (259, 250880), (280, 232064), (296, 219520), (320, 203056), (343, 189440), (370, 175616), (392, 165760), (448, 145040), (490, 132608), (512, 126910), (518, 125440), (560, 116032), (592, 109760), (640, 101528), (686, 94720), (740, 87808), (784, 82880), (896, 72520), (980, 66304), (1024, 63455), (1036, 62720), (1120, 58016), (1184, 54880), (1280, 50764), (1295, 50176), (1372, 47360), (1480, 43904), (1568, 41440), (1715, 37888), (1792, 36260), (1813, 35840), (1960, 33152), (2072, 31360), (2240, 29008), (2368, 27440), (2560, 25382), (2590, 25088), (2744, 23680), (2960, 21952), (3136, 20720), (3430, 18944), (3584, 18130), (3626, 17920), (3920, 16576), (4144, 15680), (4480, 14504), (4736, 13720), (5120, 12691), (5180, 12544), (5488, 11840), (5920, 10976), (6272, 10360), (6860, 9472), (7168, 9065), (7252, 8960), (7840, 8288)]