20247700

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{233}}^1$

素因数の和:337

約数の個数: 72

約数和(自身を含む): 48746880

約数和(自身を除く): 28499180

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 79, 100, 110, 158, 220, 233, 275, 316, 395, 466, 550, 790, 869, 932, 1100, 1165, 1580, 1738, 1975, 2330, 2563, 3476, 3950, 4345, 4660, 5126, 5825, 7900, 8690, 10252, 11650, 12815, 17380, 18407, 21725, 23300, 25630, 36814, 43450, 51260, 64075, 73628, 86900, 92035, 128150, 184070, 202477, 256300, 368140, 404954, 460175, 809908, 920350, 1012385, 1840700, 2024770, 4049540, 5061925, 10123850, 20247700]

約数ペア:

[(1, 20247700), (2, 10123850), (4, 5061925), (5, 4049540), (10, 2024770), (11, 1840700), (20, 1012385), (22, 920350), (25, 809908), (44, 460175), (50, 404954), (55, 368140), (79, 256300), (100, 202477), (110, 184070), (158, 128150), (220, 92035), (233, 86900), (275, 73628), (316, 64075), (395, 51260), (466, 43450), (550, 36814), (790, 25630), (869, 23300), (932, 21725), (1100, 18407), (1165, 17380), (1580, 12815), (1738, 11650), (1975, 10252), (2330, 8690), (2563, 7900), (3476, 5825), (3950, 5126), (4345, 4660)]