78751820

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{163}}^1$

素因数の和:232

約数の個数: 144

約数和(自身を含む): 212012640

約数和(自身を除く): 133260820

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 29, 34, 35, 49, 58, 68, 70, 85, 98, 116, 119, 140, 145, 163, 170, 196, 203, 238, 245, 290, 326, 340, 406, 476, 490, 493, 580, 595, 652, 812, 815, 833, 980, 986, 1015, 1141, 1190, 1421, 1630, 1666, 1972, 2030, 2282, 2380, 2465, 2771, 2842, 3260, 3332, 3451, 4060, 4165, 4564, 4727, 4930, 5542, 5684, 5705, 6902, 7105, 7987, 8330, 9454, 9860, 11084, 11410, 13804, 13855, 14210, 15974, 16660, 17255, 18908, 19397, 22820, 23635, 24157, 27710, 28420, 31948, 33089, 34510, 38794, 39935, 47270, 48314, 55420, 66178, 69020, 77588, 79870, 80359, 94540, 96628, 96985, 120785, 132356, 135779, 159740, 160718, 165445, 193970, 231623, 241570, 271558, 321436, 330890, 387940, 401795, 463246, 483140, 543116, 562513, 661780, 678895, 803590, 926492, 1125026, 1158115, 1357790, 1607180, 2250052, 2316230, 2715580, 2812565, 3937591, 4632460, 5625130, 7875182, 11250260, 15750364, 19687955, 39375910, 78751820]

約数ペア:

[(1, 78751820), (2, 39375910), (4, 19687955), (5, 15750364), (7, 11250260), (10, 7875182), (14, 5625130), (17, 4632460), (20, 3937591), (28, 2812565), (29, 2715580), (34, 2316230), (35, 2250052), (49, 1607180), (58, 1357790), (68, 1158115), (70, 1125026), (85, 926492), (98, 803590), (116, 678895), (119, 661780), (140, 562513), (145, 543116), (163, 483140), (170, 463246), (196, 401795), (203, 387940), (238, 330890), (245, 321436), (290, 271558), (326, 241570), (340, 231623), (406, 193970), (476, 165445), (490, 160718), (493, 159740), (580, 135779), (595, 132356), (652, 120785), (812, 96985), (815, 96628), (833, 94540), (980, 80359), (986, 79870), (1015, 77588), (1141, 69020), (1190, 66178), (1421, 55420), (1630, 48314), (1666, 47270), (1972, 39935), (2030, 38794), (2282, 34510), (2380, 33089), (2465, 31948), (2771, 28420), (2842, 27710), (3260, 24157), (3332, 23635), (3451, 22820), (4060, 19397), (4165, 18908), (4564, 17255), (4727, 16660), (4930, 15974), (5542, 14210), (5684, 13855), (5705, 13804), (6902, 11410), (7105, 11084), (7987, 9860), (8330, 9454)]