1638631680

素因数分解:

$2^8\times 3^1\times 5^1\times 7^1\times {\mathrm{60961}}^1$

素因数の和:60992

約数の個数: 144

約数和(自身を含む): 5981103744

約数和(自身を除く): 4342472064

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, 56, 60, 64, 70, 80, 84, 96, 105, 112, 120, 128, 140, 160, 168, 192, 210, 224, 240, 256, 280, 320, 336, 384, 420, 448, 480, 560, 640, 672, 768, 840, 896, 960, 1120, 1280, 1344, 1680, 1792, 1920, 2240, 2688, 3360, 3840, 4480, 5376, 6720, 8960, 13440, 26880, 60961, 121922, 182883, 243844, 304805, 365766, 426727, 487688, 609610, 731532, 853454, 914415, 975376, 1219220, 1280181, 1463064, 1706908, 1828830, 1950752, 2133635, 2438440, 2560362, 2926128, 3413816, 3657660, 3901504, 4267270, 4876880, 5120724, 5852256, 6400905, 6827632, 7315320, 7803008, 8534540, 9753760, 10241448, 11704512, 12801810, 13655264, 14630640, 15606016, 17069080, 19507520, 20482896, 23409024, 25603620, 27310528, 29261280, 34138160, 39015040, 40965792, 46818048, 51207240, 54621056, 58522560, 68276320, 78030080, 81931584, 102414480, 109242112, 117045120, 136552640, 163863168, 204828960, 234090240, 273105280, 327726336, 409657920, 546210560, 819315840, 1638631680]

約数ペア:

[(1, 1638631680), (2, 819315840), (3, 546210560), (4, 409657920), (5, 327726336), (6, 273105280), (7, 234090240), (8, 204828960), (10, 163863168), (12, 136552640), (14, 117045120), (15, 109242112), (16, 102414480), (20, 81931584), (21, 78030080), (24, 68276320), (28, 58522560), (30, 54621056), (32, 51207240), (35, 46818048), (40, 40965792), (42, 39015040), (48, 34138160), (56, 29261280), (60, 27310528), (64, 25603620), (70, 23409024), (80, 20482896), (84, 19507520), (96, 17069080), (105, 15606016), (112, 14630640), (120, 13655264), (128, 12801810), (140, 11704512), (160, 10241448), (168, 9753760), (192, 8534540), (210, 7803008), (224, 7315320), (240, 6827632), (256, 6400905), (280, 5852256), (320, 5120724), (336, 4876880), (384, 4267270), (420, 3901504), (448, 3657660), (480, 3413816), (560, 2926128), (640, 2560362), (672, 2438440), (768, 2133635), (840, 1950752), (896, 1828830), (960, 1706908), (1120, 1463064), (1280, 1280181), (1344, 1219220), (1680, 975376), (1792, 914415), (1920, 853454), (2240, 731532), (2688, 609610), (3360, 487688), (3840, 426727), (4480, 365766), (5376, 304805), (6720, 243844), (8960, 182883), (13440, 121922), (26880, 60961)]