215564728

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{347}}^1$

素因数の和:500

約数の個数: 64

約数和(自身を含む): 440150400

約数和(自身を除く): 224585672

約数列:

[1, 2, 4, 8, 19, 38, 61, 67, 76, 122, 134, 152, 244, 268, 347, 488, 536, 694, 1159, 1273, 1388, 2318, 2546, 2776, 4087, 4636, 5092, 6593, 8174, 9272, 10184, 13186, 16348, 21167, 23249, 26372, 32696, 42334, 46498, 52744, 77653, 84668, 92996, 155306, 169336, 185992, 310612, 402173, 441731, 621224, 804346, 883462, 1418189, 1608692, 1766924, 2836378, 3217384, 3533848, 5672756, 11345512, 26945591, 53891182, 107782364, 215564728]

約数ペア:

[(1, 215564728), (2, 107782364), (4, 53891182), (8, 26945591), (19, 11345512), (38, 5672756), (61, 3533848), (67, 3217384), (76, 2836378), (122, 1766924), (134, 1608692), (152, 1418189), (244, 883462), (268, 804346), (347, 621224), (488, 441731), (536, 402173), (694, 310612), (1159, 185992), (1273, 169336), (1388, 155306), (2318, 92996), (2546, 84668), (2776, 77653), (4087, 52744), (4636, 46498), (5092, 42334), (6593, 32696), (8174, 26372), (9272, 23249), (10184, 21167), (13186, 16348)]