28021428

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{577}}^1$

素因数の和:677

約数の個数: 72

約数和(自身を含む): 75741120

約数和(自身を除く): 47719692

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 57, 71, 76, 114, 142, 171, 213, 228, 284, 342, 426, 577, 639, 684, 852, 1154, 1278, 1349, 1731, 2308, 2556, 2698, 3462, 4047, 5193, 5396, 6924, 8094, 10386, 10963, 12141, 16188, 20772, 21926, 24282, 32889, 40967, 43852, 48564, 65778, 81934, 98667, 122901, 131556, 163868, 197334, 245802, 368703, 394668, 491604, 737406, 778373, 1474812, 1556746, 2335119, 3113492, 4670238, 7005357, 9340476, 14010714, 28021428]

約数ペア:

[(1, 28021428), (2, 14010714), (3, 9340476), (4, 7005357), (6, 4670238), (9, 3113492), (12, 2335119), (18, 1556746), (19, 1474812), (36, 778373), (38, 737406), (57, 491604), (71, 394668), (76, 368703), (114, 245802), (142, 197334), (171, 163868), (213, 131556), (228, 122901), (284, 98667), (342, 81934), (426, 65778), (577, 48564), (639, 43852), (684, 40967), (852, 32889), (1154, 24282), (1278, 21926), (1349, 20772), (1731, 16188), (2308, 12141), (2556, 10963), (2698, 10386), (3462, 8094), (4047, 6924), (5193, 5396)]