19753580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{127}}^1$

素因数の和:255

約数の個数: 96

約数和(自身を含む): 52641792

約数和(自身を除く): 32888212

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 101, 110, 127, 140, 154, 202, 220, 254, 308, 385, 404, 505, 508, 635, 707, 770, 889, 1010, 1111, 1270, 1397, 1414, 1540, 1778, 2020, 2222, 2540, 2794, 2828, 3535, 3556, 4444, 4445, 5555, 5588, 6985, 7070, 7777, 8890, 9779, 11110, 12827, 13970, 14140, 15554, 17780, 19558, 22220, 25654, 27940, 31108, 38885, 39116, 48895, 51308, 64135, 77770, 89789, 97790, 128270, 141097, 155540, 179578, 195580, 256540, 282194, 359156, 448945, 564388, 705485, 897890, 987679, 1410970, 1795780, 1975358, 2821940, 3950716, 4938395, 9876790, 19753580]

約数ペア:

[(1, 19753580), (2, 9876790), (4, 4938395), (5, 3950716), (7, 2821940), (10, 1975358), (11, 1795780), (14, 1410970), (20, 987679), (22, 897890), (28, 705485), (35, 564388), (44, 448945), (55, 359156), (70, 282194), (77, 256540), (101, 195580), (110, 179578), (127, 155540), (140, 141097), (154, 128270), (202, 97790), (220, 89789), (254, 77770), (308, 64135), (385, 51308), (404, 48895), (505, 39116), (508, 38885), (635, 31108), (707, 27940), (770, 25654), (889, 22220), (1010, 19558), (1111, 17780), (1270, 15554), (1397, 14140), (1414, 13970), (1540, 12827), (1778, 11110), (2020, 9779), (2222, 8890), (2540, 7777), (2794, 7070), (2828, 6985), (3535, 5588), (3556, 5555), (4444, 4445)]