128791880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{563}}^1$

素因数の和:643

約数の個数: 128

約数和(自身を含む): 357350400

約数和(自身を除く): 228558520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 43, 56, 70, 76, 86, 95, 133, 140, 152, 172, 190, 215, 266, 280, 301, 344, 380, 430, 532, 563, 602, 665, 760, 817, 860, 1064, 1126, 1204, 1330, 1505, 1634, 1720, 2252, 2408, 2660, 2815, 3010, 3268, 3941, 4085, 4504, 5320, 5630, 5719, 6020, 6536, 7882, 8170, 10697, 11260, 11438, 12040, 15764, 16340, 19705, 21394, 22520, 22876, 24209, 28595, 31528, 32680, 39410, 42788, 45752, 48418, 53485, 57190, 74879, 78820, 85576, 96836, 106970, 114380, 121045, 149758, 157640, 169463, 193672, 213940, 228760, 242090, 299516, 338926, 374395, 427880, 459971, 484180, 599032, 677852, 748790, 847315, 919942, 968360, 1355704, 1497580, 1694630, 1839884, 2299855, 2995160, 3219797, 3389260, 3679768, 4599710, 6439594, 6778520, 9199420, 12879188, 16098985, 18398840, 25758376, 32197970, 64395940, 128791880]

約数ペア:

[(1, 128791880), (2, 64395940), (4, 32197970), (5, 25758376), (7, 18398840), (8, 16098985), (10, 12879188), (14, 9199420), (19, 6778520), (20, 6439594), (28, 4599710), (35, 3679768), (38, 3389260), (40, 3219797), (43, 2995160), (56, 2299855), (70, 1839884), (76, 1694630), (86, 1497580), (95, 1355704), (133, 968360), (140, 919942), (152, 847315), (172, 748790), (190, 677852), (215, 599032), (266, 484180), (280, 459971), (301, 427880), (344, 374395), (380, 338926), (430, 299516), (532, 242090), (563, 228760), (602, 213940), (665, 193672), (760, 169463), (817, 157640), (860, 149758), (1064, 121045), (1126, 114380), (1204, 106970), (1330, 96836), (1505, 85576), (1634, 78820), (1720, 74879), (2252, 57190), (2408, 53485), (2660, 48418), (2815, 45752), (3010, 42788), (3268, 39410), (3941, 32680), (4085, 31528), (4504, 28595), (5320, 24209), (5630, 22876), (5719, 22520), (6020, 21394), (6536, 19705), (7882, 16340), (8170, 15764), (10697, 12040), (11260, 11438)]