20256928

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{1619}}^1$

素因数の和:1669

約数の個数: 48

約数和(自身を含む): 44089920

約数和(自身を除く): 23832992

約数列:

[1, 2, 4, 8, 16, 17, 23, 32, 34, 46, 68, 92, 136, 184, 272, 368, 391, 544, 736, 782, 1564, 1619, 3128, 3238, 6256, 6476, 12512, 12952, 25904, 27523, 37237, 51808, 55046, 74474, 110092, 148948, 220184, 297896, 440368, 595792, 633029, 880736, 1191584, 1266058, 2532116, 5064232, 10128464, 20256928]

約数ペア:

[(1, 20256928), (2, 10128464), (4, 5064232), (8, 2532116), (16, 1266058), (17, 1191584), (23, 880736), (32, 633029), (34, 595792), (46, 440368), (68, 297896), (92, 220184), (136, 148948), (184, 110092), (272, 74474), (368, 55046), (391, 51808), (544, 37237), (736, 27523), (782, 25904), (1564, 12952), (1619, 12512), (3128, 6476), (3238, 6256)]