261401280

素因数分解:

$2^6\times 3^1\times 5^1\times 7^2\times {\mathrm{5557}}^1$

素因数の和:5591

約数の個数: 168

約数和(自身を含む): 965624688

約数和(自身を除く): 704223408

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 49, 56, 60, 64, 70, 80, 84, 96, 98, 105, 112, 120, 140, 147, 160, 168, 192, 196, 210, 224, 240, 245, 280, 294, 320, 336, 392, 420, 448, 480, 490, 560, 588, 672, 735, 784, 840, 960, 980, 1120, 1176, 1344, 1470, 1568, 1680, 1960, 2240, 2352, 2940, 3136, 3360, 3920, 4704, 5557, 5880, 6720, 7840, 9408, 11114, 11760, 15680, 16671, 22228, 23520, 27785, 33342, 38899, 44456, 47040, 55570, 66684, 77798, 83355, 88912, 111140, 116697, 133368, 155596, 166710, 177824, 194495, 222280, 233394, 266736, 272293, 311192, 333420, 355648, 388990, 444560, 466788, 533472, 544586, 583485, 622384, 666840, 777980, 816879, 889120, 933576, 1066944, 1089172, 1166970, 1244768, 1333680, 1361465, 1555960, 1633758, 1778240, 1867152, 2178344, 2333940, 2489536, 2667360, 2722930, 3111920, 3267516, 3734304, 4084395, 4356688, 4667880, 5334720, 5445860, 6223840, 6535032, 7468608, 8168790, 8713376, 9335760, 10891720, 12447680, 13070064, 16337580, 17426752, 18671520, 21783440, 26140128, 32675160, 37343040, 43566880, 52280256, 65350320, 87133760, 130700640, 261401280]

約数ペア:

[(1, 261401280), (2, 130700640), (3, 87133760), (4, 65350320), (5, 52280256), (6, 43566880), (7, 37343040), (8, 32675160), (10, 26140128), (12, 21783440), (14, 18671520), (15, 17426752), (16, 16337580), (20, 13070064), (21, 12447680), (24, 10891720), (28, 9335760), (30, 8713376), (32, 8168790), (35, 7468608), (40, 6535032), (42, 6223840), (48, 5445860), (49, 5334720), (56, 4667880), (60, 4356688), (64, 4084395), (70, 3734304), (80, 3267516), (84, 3111920), (96, 2722930), (98, 2667360), (105, 2489536), (112, 2333940), (120, 2178344), (140, 1867152), (147, 1778240), (160, 1633758), (168, 1555960), (192, 1361465), (196, 1333680), (210, 1244768), (224, 1166970), (240, 1089172), (245, 1066944), (280, 933576), (294, 889120), (320, 816879), (336, 777980), (392, 666840), (420, 622384), (448, 583485), (480, 544586), (490, 533472), (560, 466788), (588, 444560), (672, 388990), (735, 355648), (784, 333420), (840, 311192), (960, 272293), (980, 266736), (1120, 233394), (1176, 222280), (1344, 194495), (1470, 177824), (1568, 166710), (1680, 155596), (1960, 133368), (2240, 116697), (2352, 111140), (2940, 88912), (3136, 83355), (3360, 77798), (3920, 66684), (4704, 55570), (5557, 47040), (5880, 44456), (6720, 38899), (7840, 33342), (9408, 27785), (11114, 23520), (11760, 22228), (15680, 16671)]