20622904

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{347}}^1$

素因数の和:412

約数の個数: 64

約数和(自身を含む): 45100800

約数和(自身を除く): 24477896

約数列:

[1, 2, 4, 8, 17, 19, 23, 34, 38, 46, 68, 76, 92, 136, 152, 184, 323, 347, 391, 437, 646, 694, 782, 874, 1292, 1388, 1564, 1748, 2584, 2776, 3128, 3496, 5899, 6593, 7429, 7981, 11798, 13186, 14858, 15962, 23596, 26372, 29716, 31924, 47192, 52744, 59432, 63848, 112081, 135677, 151639, 224162, 271354, 303278, 448324, 542708, 606556, 896648, 1085416, 1213112, 2577863, 5155726, 10311452, 20622904]

約数ペア:

[(1, 20622904), (2, 10311452), (4, 5155726), (8, 2577863), (17, 1213112), (19, 1085416), (23, 896648), (34, 606556), (38, 542708), (46, 448324), (68, 303278), (76, 271354), (92, 224162), (136, 151639), (152, 135677), (184, 112081), (323, 63848), (347, 59432), (391, 52744), (437, 47192), (646, 31924), (694, 29716), (782, 26372), (874, 23596), (1292, 15962), (1388, 14858), (1564, 13186), (1748, 11798), (2584, 7981), (2776, 7429), (3128, 6593), (3496, 5899)]