19642976

素因数分解:

$2^5\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{347}}^1$

素因数の和:447

約数の個数: 48

約数和(自身を含む): 40778640

約数和(自身を除く): 21135664

約数列:

[1, 2, 4, 8, 16, 29, 32, 58, 61, 116, 122, 232, 244, 347, 464, 488, 694, 928, 976, 1388, 1769, 1952, 2776, 3538, 5552, 7076, 10063, 11104, 14152, 20126, 21167, 28304, 40252, 42334, 56608, 80504, 84668, 161008, 169336, 322016, 338672, 613843, 677344, 1227686, 2455372, 4910744, 9821488, 19642976]

約数ペア:

[(1, 19642976), (2, 9821488), (4, 4910744), (8, 2455372), (16, 1227686), (29, 677344), (32, 613843), (58, 338672), (61, 322016), (116, 169336), (122, 161008), (232, 84668), (244, 80504), (347, 56608), (464, 42334), (488, 40252), (694, 28304), (928, 21167), (976, 20126), (1388, 14152), (1769, 11104), (1952, 10063), (2776, 7076), (3538, 5552)]