20800650

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{10667}}^1$

素因数の和:10695

約数の個数: 48

約数和(自身を含む): 55558944

約数和(自身を除く): 34758294

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 25, 26, 30, 39, 50, 65, 75, 78, 130, 150, 195, 325, 390, 650, 975, 1950, 10667, 21334, 32001, 53335, 64002, 106670, 138671, 160005, 266675, 277342, 320010, 416013, 533350, 693355, 800025, 832026, 1386710, 1600050, 2080065, 3466775, 4160130, 6933550, 10400325, 20800650]

約数ペア:

[(1, 20800650), (2, 10400325), (3, 6933550), (5, 4160130), (6, 3466775), (10, 2080065), (13, 1600050), (15, 1386710), (25, 832026), (26, 800025), (30, 693355), (39, 533350), (50, 416013), (65, 320010), (75, 277342), (78, 266675), (130, 160005), (150, 138671), (195, 106670), (325, 64002), (390, 53335), (650, 32001), (975, 21334), (1950, 10667)]