19983320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{107}}^1$

素因数の和:177

約数の個数: 128

約数和(自身を含む): 55987200

約数和(自身を除く): 36003880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 29, 35, 40, 46, 56, 58, 70, 92, 107, 115, 116, 140, 145, 161, 184, 203, 214, 230, 232, 280, 290, 322, 406, 428, 460, 535, 580, 644, 667, 749, 805, 812, 856, 920, 1015, 1070, 1160, 1288, 1334, 1498, 1610, 1624, 2030, 2140, 2461, 2668, 2996, 3103, 3220, 3335, 3745, 4060, 4280, 4669, 4922, 5336, 5992, 6206, 6440, 6670, 7490, 8120, 9338, 9844, 12305, 12412, 13340, 14980, 15515, 17227, 18676, 19688, 21721, 23345, 24610, 24824, 26680, 29960, 31030, 34454, 37352, 43442, 46690, 49220, 62060, 68908, 71369, 86135, 86884, 93380, 98440, 108605, 124120, 137816, 142738, 172270, 173768, 186760, 217210, 285476, 344540, 356845, 434420, 499583, 570952, 689080, 713690, 868840, 999166, 1427380, 1998332, 2497915, 2854760, 3996664, 4995830, 9991660, 19983320]

約数ペア:

[(1, 19983320), (2, 9991660), (4, 4995830), (5, 3996664), (7, 2854760), (8, 2497915), (10, 1998332), (14, 1427380), (20, 999166), (23, 868840), (28, 713690), (29, 689080), (35, 570952), (40, 499583), (46, 434420), (56, 356845), (58, 344540), (70, 285476), (92, 217210), (107, 186760), (115, 173768), (116, 172270), (140, 142738), (145, 137816), (161, 124120), (184, 108605), (203, 98440), (214, 93380), (230, 86884), (232, 86135), (280, 71369), (290, 68908), (322, 62060), (406, 49220), (428, 46690), (460, 43442), (535, 37352), (580, 34454), (644, 31030), (667, 29960), (749, 26680), (805, 24824), (812, 24610), (856, 23345), (920, 21721), (1015, 19688), (1070, 18676), (1160, 17227), (1288, 15515), (1334, 14980), (1498, 13340), (1610, 12412), (1624, 12305), (2030, 9844), (2140, 9338), (2461, 8120), (2668, 7490), (2996, 6670), (3103, 6440), (3220, 6206), (3335, 5992), (3745, 5336), (4060, 4922), (4280, 4669)]