28421376

素因数分解:

$2^8\times 3^1\times {\mathrm{23}}^1\times {\mathrm{1609}}^1$

素因数の和:1651

約数の個数: 72

約数和(自身を含む): 78980160

約数和(自身を除く): 50558784

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 23, 24, 32, 46, 48, 64, 69, 92, 96, 128, 138, 184, 192, 256, 276, 368, 384, 552, 736, 768, 1104, 1472, 1609, 2208, 2944, 3218, 4416, 4827, 5888, 6436, 8832, 9654, 12872, 17664, 19308, 25744, 37007, 38616, 51488, 74014, 77232, 102976, 111021, 148028, 154464, 205952, 222042, 296056, 308928, 411904, 444084, 592112, 617856, 888168, 1184224, 1235712, 1776336, 2368448, 3552672, 4736896, 7105344, 9473792, 14210688, 28421376]

約数ペア:

[(1, 28421376), (2, 14210688), (3, 9473792), (4, 7105344), (6, 4736896), (8, 3552672), (12, 2368448), (16, 1776336), (23, 1235712), (24, 1184224), (32, 888168), (46, 617856), (48, 592112), (64, 444084), (69, 411904), (92, 308928), (96, 296056), (128, 222042), (138, 205952), (184, 154464), (192, 148028), (256, 111021), (276, 102976), (368, 77232), (384, 74014), (552, 51488), (736, 38616), (768, 37007), (1104, 25744), (1472, 19308), (1609, 17664), (2208, 12872), (2944, 9654), (3218, 8832), (4416, 6436), (4827, 5888)]