139435520

素因数分解:

$2^9\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{251}}^1$

素因数の和:312

約数の個数: 160

約数和(自身を含む): 395974656

約数和(自身を除く): 256539136

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 40, 56, 62, 64, 70, 80, 112, 124, 128, 140, 155, 160, 217, 224, 248, 251, 256, 280, 310, 320, 434, 448, 496, 502, 512, 560, 620, 640, 868, 896, 992, 1004, 1085, 1120, 1240, 1255, 1280, 1736, 1757, 1792, 1984, 2008, 2170, 2240, 2480, 2510, 2560, 3472, 3514, 3584, 3968, 4016, 4340, 4480, 4960, 5020, 6944, 7028, 7781, 7936, 8032, 8680, 8785, 8960, 9920, 10040, 13888, 14056, 15562, 15872, 16064, 17360, 17570, 17920, 19840, 20080, 27776, 28112, 31124, 32128, 34720, 35140, 38905, 39680, 40160, 54467, 55552, 56224, 62248, 64256, 69440, 70280, 77810, 79360, 80320, 108934, 111104, 112448, 124496, 128512, 138880, 140560, 155620, 160640, 217868, 224896, 248992, 272335, 277760, 281120, 311240, 321280, 435736, 449792, 497984, 544670, 555520, 562240, 622480, 642560, 871472, 899584, 995968, 1089340, 1124480, 1244960, 1742944, 1991936, 2178680, 2248960, 2489920, 3485888, 3983872, 4357360, 4497920, 4979840, 6971776, 8714720, 9959680, 13943552, 17429440, 19919360, 27887104, 34858880, 69717760, 139435520]

約数ペア:

[(1, 139435520), (2, 69717760), (4, 34858880), (5, 27887104), (7, 19919360), (8, 17429440), (10, 13943552), (14, 9959680), (16, 8714720), (20, 6971776), (28, 4979840), (31, 4497920), (32, 4357360), (35, 3983872), (40, 3485888), (56, 2489920), (62, 2248960), (64, 2178680), (70, 1991936), (80, 1742944), (112, 1244960), (124, 1124480), (128, 1089340), (140, 995968), (155, 899584), (160, 871472), (217, 642560), (224, 622480), (248, 562240), (251, 555520), (256, 544670), (280, 497984), (310, 449792), (320, 435736), (434, 321280), (448, 311240), (496, 281120), (502, 277760), (512, 272335), (560, 248992), (620, 224896), (640, 217868), (868, 160640), (896, 155620), (992, 140560), (1004, 138880), (1085, 128512), (1120, 124496), (1240, 112448), (1255, 111104), (1280, 108934), (1736, 80320), (1757, 79360), (1792, 77810), (1984, 70280), (2008, 69440), (2170, 64256), (2240, 62248), (2480, 56224), (2510, 55552), (2560, 54467), (3472, 40160), (3514, 39680), (3584, 38905), (3968, 35140), (4016, 34720), (4340, 32128), (4480, 31124), (4960, 28112), (5020, 27776), (6944, 20080), (7028, 19840), (7781, 17920), (7936, 17570), (8032, 17360), (8680, 16064), (8785, 15872), (8960, 15562), (9920, 14056), (10040, 13888)]