19929280

素因数分解:

$2^6\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{41}}^1$

素因数の和:103

約数の個数: 168

約数和(自身を含む): 58375296

約数和(自身を除く): 38446016

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 40, 41, 49, 56, 62, 64, 70, 80, 82, 98, 112, 124, 140, 155, 160, 164, 196, 205, 217, 224, 245, 248, 280, 287, 310, 320, 328, 392, 410, 434, 448, 490, 496, 560, 574, 620, 656, 784, 820, 868, 980, 992, 1085, 1120, 1148, 1240, 1271, 1312, 1435, 1519, 1568, 1640, 1736, 1960, 1984, 2009, 2170, 2240, 2296, 2480, 2542, 2624, 2870, 3038, 3136, 3280, 3472, 3920, 4018, 4340, 4592, 4960, 5084, 5740, 6076, 6355, 6560, 6944, 7595, 7840, 8036, 8680, 8897, 9184, 9920, 10045, 10168, 11480, 12152, 12710, 13120, 13888, 15190, 15680, 16072, 17360, 17794, 18368, 20090, 20336, 22960, 24304, 25420, 30380, 32144, 34720, 35588, 40180, 40672, 44485, 45920, 48608, 50840, 60760, 62279, 64288, 69440, 71176, 80360, 81344, 88970, 91840, 97216, 101680, 121520, 124558, 128576, 142352, 160720, 177940, 203360, 243040, 249116, 284704, 311395, 321440, 355880, 406720, 486080, 498232, 569408, 622790, 642880, 711760, 996464, 1245580, 1423520, 1992928, 2491160, 2847040, 3985856, 4982320, 9964640, 19929280]

約数ペア:

[(1, 19929280), (2, 9964640), (4, 4982320), (5, 3985856), (7, 2847040), (8, 2491160), (10, 1992928), (14, 1423520), (16, 1245580), (20, 996464), (28, 711760), (31, 642880), (32, 622790), (35, 569408), (40, 498232), (41, 486080), (49, 406720), (56, 355880), (62, 321440), (64, 311395), (70, 284704), (80, 249116), (82, 243040), (98, 203360), (112, 177940), (124, 160720), (140, 142352), (155, 128576), (160, 124558), (164, 121520), (196, 101680), (205, 97216), (217, 91840), (224, 88970), (245, 81344), (248, 80360), (280, 71176), (287, 69440), (310, 64288), (320, 62279), (328, 60760), (392, 50840), (410, 48608), (434, 45920), (448, 44485), (490, 40672), (496, 40180), (560, 35588), (574, 34720), (620, 32144), (656, 30380), (784, 25420), (820, 24304), (868, 22960), (980, 20336), (992, 20090), (1085, 18368), (1120, 17794), (1148, 17360), (1240, 16072), (1271, 15680), (1312, 15190), (1435, 13888), (1519, 13120), (1568, 12710), (1640, 12152), (1736, 11480), (1960, 10168), (1984, 10045), (2009, 9920), (2170, 9184), (2240, 8897), (2296, 8680), (2480, 8036), (2542, 7840), (2624, 7595), (2870, 6944), (3038, 6560), (3136, 6355), (3280, 6076), (3472, 5740), (3920, 5084), (4018, 4960), (4340, 4592)]