281895040

素因数分解:

$2^7\times 5^1\times 7^2\times {\mathrm{89}}^1\times {\mathrm{101}}^1$

素因数の和:223

約数の個数: 192

約数和(自身を含む): 800587800

約数和(自身を除く): 518692760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 80, 89, 98, 101, 112, 128, 140, 160, 178, 196, 202, 224, 245, 280, 320, 356, 392, 404, 445, 448, 490, 505, 560, 623, 640, 707, 712, 784, 808, 890, 896, 980, 1010, 1120, 1246, 1414, 1424, 1568, 1616, 1780, 1960, 2020, 2240, 2492, 2828, 2848, 3115, 3136, 3232, 3535, 3560, 3920, 4040, 4361, 4480, 4949, 4984, 5656, 5696, 6230, 6272, 6464, 7070, 7120, 7840, 8080, 8722, 8989, 9898, 9968, 11312, 11392, 12460, 12928, 14140, 14240, 15680, 16160, 17444, 17978, 19796, 19936, 21805, 22624, 24745, 24920, 28280, 28480, 31360, 32320, 34888, 35956, 39592, 39872, 43610, 44945, 45248, 49490, 49840, 56560, 56960, 62923, 64640, 69776, 71912, 79184, 79744, 87220, 89890, 90496, 98980, 99680, 113120, 125846, 139552, 143824, 158368, 174440, 179780, 197960, 199360, 226240, 251692, 279104, 287648, 314615, 316736, 348880, 359560, 395920, 398720, 440461, 452480, 503384, 558208, 575296, 629230, 633472, 697760, 719120, 791840, 880922, 1006768, 1150592, 1258460, 1395520, 1438240, 1583680, 1761844, 2013536, 2202305, 2516920, 2791040, 2876480, 3167360, 3523688, 4027072, 4404610, 5033840, 5752960, 7047376, 8054144, 8809220, 10067680, 14094752, 17618440, 20135360, 28189504, 35236880, 40270720, 56379008, 70473760, 140947520, 281895040]

約数ペア:

[(1, 281895040), (2, 140947520), (4, 70473760), (5, 56379008), (7, 40270720), (8, 35236880), (10, 28189504), (14, 20135360), (16, 17618440), (20, 14094752), (28, 10067680), (32, 8809220), (35, 8054144), (40, 7047376), (49, 5752960), (56, 5033840), (64, 4404610), (70, 4027072), (80, 3523688), (89, 3167360), (98, 2876480), (101, 2791040), (112, 2516920), (128, 2202305), (140, 2013536), (160, 1761844), (178, 1583680), (196, 1438240), (202, 1395520), (224, 1258460), (245, 1150592), (280, 1006768), (320, 880922), (356, 791840), (392, 719120), (404, 697760), (445, 633472), (448, 629230), (490, 575296), (505, 558208), (560, 503384), (623, 452480), (640, 440461), (707, 398720), (712, 395920), (784, 359560), (808, 348880), (890, 316736), (896, 314615), (980, 287648), (1010, 279104), (1120, 251692), (1246, 226240), (1414, 199360), (1424, 197960), (1568, 179780), (1616, 174440), (1780, 158368), (1960, 143824), (2020, 139552), (2240, 125846), (2492, 113120), (2828, 99680), (2848, 98980), (3115, 90496), (3136, 89890), (3232, 87220), (3535, 79744), (3560, 79184), (3920, 71912), (4040, 69776), (4361, 64640), (4480, 62923), (4949, 56960), (4984, 56560), (5656, 49840), (5696, 49490), (6230, 45248), (6272, 44945), (6464, 43610), (7070, 39872), (7120, 39592), (7840, 35956), (8080, 34888), (8722, 32320), (8989, 31360), (9898, 28480), (9968, 28280), (11312, 24920), (11392, 24745), (12460, 22624), (12928, 21805), (14140, 19936), (14240, 19796), (15680, 17978), (16160, 17444)]