38373940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{101}}^1\times {\mathrm{157}}^1$

素因数の和:289

約数の個数: 72

約数和(自身を含む): 90023976

約数和(自身を除く): 51650036

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 101, 110, 121, 157, 202, 220, 242, 314, 404, 484, 505, 605, 628, 785, 1010, 1111, 1210, 1570, 1727, 2020, 2222, 2420, 3140, 3454, 4444, 5555, 6908, 8635, 11110, 12221, 15857, 17270, 18997, 22220, 24442, 31714, 34540, 37994, 48884, 61105, 63428, 75988, 79285, 94985, 122210, 158570, 174427, 189970, 244420, 317140, 348854, 379940, 697708, 872135, 1744270, 1918697, 3488540, 3837394, 7674788, 9593485, 19186970, 38373940]

約数ペア:

[(1, 38373940), (2, 19186970), (4, 9593485), (5, 7674788), (10, 3837394), (11, 3488540), (20, 1918697), (22, 1744270), (44, 872135), (55, 697708), (101, 379940), (110, 348854), (121, 317140), (157, 244420), (202, 189970), (220, 174427), (242, 158570), (314, 122210), (404, 94985), (484, 79285), (505, 75988), (605, 63428), (628, 61105), (785, 48884), (1010, 37994), (1111, 34540), (1210, 31714), (1570, 24442), (1727, 22220), (2020, 18997), (2222, 17270), (2420, 15857), (3140, 12221), (3454, 11110), (4444, 8635), (5555, 6908)]