82970720

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{557}}^1$

素因数の和:605

約数の個数: 144

約数和(自身を含む): 240453360

約数和(自身を除く): 157482640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 32, 35, 38, 40, 49, 56, 70, 76, 80, 95, 98, 112, 133, 140, 152, 160, 190, 196, 224, 245, 266, 280, 304, 380, 392, 490, 532, 557, 560, 608, 665, 760, 784, 931, 980, 1064, 1114, 1120, 1330, 1520, 1568, 1862, 1960, 2128, 2228, 2660, 2785, 3040, 3724, 3899, 3920, 4256, 4456, 4655, 5320, 5570, 7448, 7798, 7840, 8912, 9310, 10583, 10640, 11140, 14896, 15596, 17824, 18620, 19495, 21166, 21280, 22280, 27293, 29792, 31192, 37240, 38990, 42332, 44560, 52915, 54586, 62384, 74081, 74480, 77980, 84664, 89120, 105830, 109172, 124768, 136465, 148162, 148960, 155960, 169328, 211660, 218344, 272930, 296324, 311920, 338656, 370405, 423320, 436688, 518567, 545860, 592648, 623840, 740810, 846640, 873376, 1037134, 1091720, 1185296, 1481620, 1693280, 2074268, 2183440, 2370592, 2592835, 2963240, 4148536, 4366880, 5185670, 5926480, 8297072, 10371340, 11852960, 16594144, 20742680, 41485360, 82970720]

約数ペア:

[(1, 82970720), (2, 41485360), (4, 20742680), (5, 16594144), (7, 11852960), (8, 10371340), (10, 8297072), (14, 5926480), (16, 5185670), (19, 4366880), (20, 4148536), (28, 2963240), (32, 2592835), (35, 2370592), (38, 2183440), (40, 2074268), (49, 1693280), (56, 1481620), (70, 1185296), (76, 1091720), (80, 1037134), (95, 873376), (98, 846640), (112, 740810), (133, 623840), (140, 592648), (152, 545860), (160, 518567), (190, 436688), (196, 423320), (224, 370405), (245, 338656), (266, 311920), (280, 296324), (304, 272930), (380, 218344), (392, 211660), (490, 169328), (532, 155960), (557, 148960), (560, 148162), (608, 136465), (665, 124768), (760, 109172), (784, 105830), (931, 89120), (980, 84664), (1064, 77980), (1114, 74480), (1120, 74081), (1330, 62384), (1520, 54586), (1568, 52915), (1862, 44560), (1960, 42332), (2128, 38990), (2228, 37240), (2660, 31192), (2785, 29792), (3040, 27293), (3724, 22280), (3899, 21280), (3920, 21166), (4256, 19495), (4456, 18620), (4655, 17824), (5320, 15596), (5570, 14896), (7448, 11140), (7798, 10640), (7840, 10583), (8912, 9310)]