198866920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{1289}}^1$

素因数の和:1355

約数の個数: 128

約数和(自身を含む): 557280000

約数和(自身を除く): 358413080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 29, 35, 38, 40, 56, 58, 70, 76, 95, 116, 133, 140, 145, 152, 190, 203, 232, 266, 280, 290, 380, 406, 532, 551, 580, 665, 760, 812, 1015, 1064, 1102, 1160, 1289, 1330, 1624, 2030, 2204, 2578, 2660, 2755, 3857, 4060, 4408, 5156, 5320, 5510, 6445, 7714, 8120, 9023, 10312, 11020, 12890, 15428, 18046, 19285, 22040, 24491, 25780, 30856, 36092, 37381, 38570, 45115, 48982, 51560, 72184, 74762, 77140, 90230, 97964, 122455, 149524, 154280, 171437, 180460, 186905, 195928, 244910, 261667, 299048, 342874, 360920, 373810, 489820, 523334, 685748, 710239, 747620, 857185, 979640, 1046668, 1308335, 1371496, 1420478, 1495240, 1714370, 2093336, 2616670, 2840956, 3428740, 3551195, 4971673, 5233340, 5681912, 6857480, 7102390, 9943346, 10466680, 14204780, 19886692, 24858365, 28409560, 39773384, 49716730, 99433460, 198866920]

約数ペア:

[(1, 198866920), (2, 99433460), (4, 49716730), (5, 39773384), (7, 28409560), (8, 24858365), (10, 19886692), (14, 14204780), (19, 10466680), (20, 9943346), (28, 7102390), (29, 6857480), (35, 5681912), (38, 5233340), (40, 4971673), (56, 3551195), (58, 3428740), (70, 2840956), (76, 2616670), (95, 2093336), (116, 1714370), (133, 1495240), (140, 1420478), (145, 1371496), (152, 1308335), (190, 1046668), (203, 979640), (232, 857185), (266, 747620), (280, 710239), (290, 685748), (380, 523334), (406, 489820), (532, 373810), (551, 360920), (580, 342874), (665, 299048), (760, 261667), (812, 244910), (1015, 195928), (1064, 186905), (1102, 180460), (1160, 171437), (1289, 154280), (1330, 149524), (1624, 122455), (2030, 97964), (2204, 90230), (2578, 77140), (2660, 74762), (2755, 72184), (3857, 51560), (4060, 48982), (4408, 45115), (5156, 38570), (5320, 37381), (5510, 36092), (6445, 30856), (7714, 25780), (8120, 24491), (9023, 22040), (10312, 19285), (11020, 18046), (12890, 15428)]