254859920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1409}}^1$

素因数の和:1465

約数の個数: 160

約数和(自身を含む): 755308800

約数和(自身を除く): 500448880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 19, 20, 28, 34, 35, 38, 40, 56, 68, 70, 76, 80, 85, 95, 112, 119, 133, 136, 140, 152, 170, 190, 238, 266, 272, 280, 304, 323, 340, 380, 476, 532, 560, 595, 646, 665, 680, 760, 952, 1064, 1190, 1292, 1330, 1360, 1409, 1520, 1615, 1904, 2128, 2261, 2380, 2584, 2660, 2818, 3230, 4522, 4760, 5168, 5320, 5636, 6460, 7045, 9044, 9520, 9863, 10640, 11272, 11305, 12920, 14090, 18088, 19726, 22544, 22610, 23953, 25840, 26771, 28180, 36176, 39452, 45220, 47906, 49315, 53542, 56360, 78904, 90440, 95812, 98630, 107084, 112720, 119765, 133855, 157808, 167671, 180880, 187397, 191624, 197260, 214168, 239530, 267710, 335342, 374794, 383248, 394520, 428336, 455107, 479060, 535420, 670684, 749588, 789040, 838355, 910214, 936985, 958120, 1070840, 1341368, 1499176, 1676710, 1820428, 1873970, 1916240, 2141680, 2275535, 2682736, 2998352, 3185749, 3353420, 3640856, 3747940, 4551070, 6371498, 6706840, 7281712, 7495880, 9102140, 12742996, 13413680, 14991760, 15928745, 18204280, 25485992, 31857490, 36408560, 50971984, 63714980, 127429960, 254859920]

約数ペア:

[(1, 254859920), (2, 127429960), (4, 63714980), (5, 50971984), (7, 36408560), (8, 31857490), (10, 25485992), (14, 18204280), (16, 15928745), (17, 14991760), (19, 13413680), (20, 12742996), (28, 9102140), (34, 7495880), (35, 7281712), (38, 6706840), (40, 6371498), (56, 4551070), (68, 3747940), (70, 3640856), (76, 3353420), (80, 3185749), (85, 2998352), (95, 2682736), (112, 2275535), (119, 2141680), (133, 1916240), (136, 1873970), (140, 1820428), (152, 1676710), (170, 1499176), (190, 1341368), (238, 1070840), (266, 958120), (272, 936985), (280, 910214), (304, 838355), (323, 789040), (340, 749588), (380, 670684), (476, 535420), (532, 479060), (560, 455107), (595, 428336), (646, 394520), (665, 383248), (680, 374794), (760, 335342), (952, 267710), (1064, 239530), (1190, 214168), (1292, 197260), (1330, 191624), (1360, 187397), (1409, 180880), (1520, 167671), (1615, 157808), (1904, 133855), (2128, 119765), (2261, 112720), (2380, 107084), (2584, 98630), (2660, 95812), (2818, 90440), (3230, 78904), (4522, 56360), (4760, 53542), (5168, 49315), (5320, 47906), (5636, 45220), (6460, 39452), (7045, 36176), (9044, 28180), (9520, 26771), (9863, 25840), (10640, 23953), (11272, 22610), (11305, 22544), (12920, 19726), (14090, 18088)]