19038760

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1$

素因数の和:131

約数の個数: 128

約数和(自身を含む): 50803200

約数和(自身を除く): 31764440

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 26, 38, 40, 41, 47, 52, 65, 76, 82, 94, 95, 104, 130, 152, 164, 188, 190, 205, 235, 247, 260, 328, 376, 380, 410, 470, 494, 520, 533, 611, 760, 779, 820, 893, 940, 988, 1066, 1222, 1235, 1558, 1640, 1786, 1880, 1927, 1976, 2132, 2444, 2470, 2665, 3055, 3116, 3572, 3854, 3895, 4264, 4465, 4888, 4940, 5330, 6110, 6232, 7144, 7708, 7790, 8930, 9635, 9880, 10127, 10660, 11609, 12220, 15416, 15580, 17860, 19270, 20254, 21320, 23218, 24440, 25051, 31160, 35720, 36613, 38540, 40508, 46436, 50102, 50635, 58045, 73226, 77080, 81016, 92872, 100204, 101270, 116090, 125255, 146452, 183065, 200408, 202540, 232180, 250510, 292904, 366130, 405080, 464360, 475969, 501020, 732260, 951938, 1002040, 1464520, 1903876, 2379845, 3807752, 4759690, 9519380, 19038760]

約数ペア:

[(1, 19038760), (2, 9519380), (4, 4759690), (5, 3807752), (8, 2379845), (10, 1903876), (13, 1464520), (19, 1002040), (20, 951938), (26, 732260), (38, 501020), (40, 475969), (41, 464360), (47, 405080), (52, 366130), (65, 292904), (76, 250510), (82, 232180), (94, 202540), (95, 200408), (104, 183065), (130, 146452), (152, 125255), (164, 116090), (188, 101270), (190, 100204), (205, 92872), (235, 81016), (247, 77080), (260, 73226), (328, 58045), (376, 50635), (380, 50102), (410, 46436), (470, 40508), (494, 38540), (520, 36613), (533, 35720), (611, 31160), (760, 25051), (779, 24440), (820, 23218), (893, 21320), (940, 20254), (988, 19270), (1066, 17860), (1222, 15580), (1235, 15416), (1558, 12220), (1640, 11609), (1786, 10660), (1880, 10127), (1927, 9880), (1976, 9635), (2132, 8930), (2444, 7790), (2470, 7708), (2665, 7144), (3055, 6232), (3116, 6110), (3572, 5330), (3854, 4940), (3895, 4888), (4264, 4465)]