128290400

素因数分解:

$2^5\times 5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{739}}^1$

素因数の和:797

約数の個数: 144

約数和(自身を含む): 369976320

約数和(自身を除く): 241685920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 31, 32, 35, 40, 50, 56, 62, 70, 80, 100, 112, 124, 140, 155, 160, 175, 200, 217, 224, 248, 280, 310, 350, 400, 434, 496, 560, 620, 700, 739, 775, 800, 868, 992, 1085, 1120, 1240, 1400, 1478, 1550, 1736, 2170, 2480, 2800, 2956, 3100, 3472, 3695, 4340, 4960, 5173, 5425, 5600, 5912, 6200, 6944, 7390, 8680, 10346, 10850, 11824, 12400, 14780, 17360, 18475, 20692, 21700, 22909, 23648, 24800, 25865, 29560, 34720, 36950, 41384, 43400, 45818, 51730, 59120, 73900, 82768, 86800, 91636, 103460, 114545, 118240, 129325, 147800, 160363, 165536, 173600, 183272, 206920, 229090, 258650, 295600, 320726, 366544, 413840, 458180, 517300, 572725, 591200, 641452, 733088, 801815, 827680, 916360, 1034600, 1145450, 1282904, 1603630, 1832720, 2069200, 2290900, 2565808, 3207260, 3665440, 4009075, 4138400, 4581800, 5131616, 6414520, 8018150, 9163600, 12829040, 16036300, 18327200, 25658080, 32072600, 64145200, 128290400]

約数ペア:

[(1, 128290400), (2, 64145200), (4, 32072600), (5, 25658080), (7, 18327200), (8, 16036300), (10, 12829040), (14, 9163600), (16, 8018150), (20, 6414520), (25, 5131616), (28, 4581800), (31, 4138400), (32, 4009075), (35, 3665440), (40, 3207260), (50, 2565808), (56, 2290900), (62, 2069200), (70, 1832720), (80, 1603630), (100, 1282904), (112, 1145450), (124, 1034600), (140, 916360), (155, 827680), (160, 801815), (175, 733088), (200, 641452), (217, 591200), (224, 572725), (248, 517300), (280, 458180), (310, 413840), (350, 366544), (400, 320726), (434, 295600), (496, 258650), (560, 229090), (620, 206920), (700, 183272), (739, 173600), (775, 165536), (800, 160363), (868, 147800), (992, 129325), (1085, 118240), (1120, 114545), (1240, 103460), (1400, 91636), (1478, 86800), (1550, 82768), (1736, 73900), (2170, 59120), (2480, 51730), (2800, 45818), (2956, 43400), (3100, 41384), (3472, 36950), (3695, 34720), (4340, 29560), (4960, 25865), (5173, 24800), (5425, 23648), (5600, 22909), (5912, 21700), (6200, 20692), (6944, 18475), (7390, 17360), (8680, 14780), (10346, 12400), (10850, 11824)]