256869200

素因数分解:

$2^4\times 5^2\times 7^1\times {\mathrm{199}}^1\times {\mathrm{461}}^1$

素因数の和:685

約数の個数: 120

約数和(自身を含む): 710371200

約数和(自身を除く): 453502000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 40, 50, 56, 70, 80, 100, 112, 140, 175, 199, 200, 280, 350, 398, 400, 461, 560, 700, 796, 922, 995, 1393, 1400, 1592, 1844, 1990, 2305, 2786, 2800, 3184, 3227, 3688, 3980, 4610, 4975, 5572, 6454, 6965, 7376, 7960, 9220, 9950, 11144, 11525, 12908, 13930, 15920, 16135, 18440, 19900, 22288, 23050, 25816, 27860, 32270, 34825, 36880, 39800, 46100, 51632, 55720, 64540, 69650, 79600, 80675, 91739, 92200, 111440, 129080, 139300, 161350, 183478, 184400, 258160, 278600, 322700, 366956, 458695, 557200, 642173, 645400, 733912, 917390, 1284346, 1290800, 1467824, 1834780, 2293475, 2568692, 3210865, 3669560, 4586950, 5137384, 6421730, 7339120, 9173900, 10274768, 12843460, 16054325, 18347800, 25686920, 32108650, 36695600, 51373840, 64217300, 128434600, 256869200]

約数ペア:

[(1, 256869200), (2, 128434600), (4, 64217300), (5, 51373840), (7, 36695600), (8, 32108650), (10, 25686920), (14, 18347800), (16, 16054325), (20, 12843460), (25, 10274768), (28, 9173900), (35, 7339120), (40, 6421730), (50, 5137384), (56, 4586950), (70, 3669560), (80, 3210865), (100, 2568692), (112, 2293475), (140, 1834780), (175, 1467824), (199, 1290800), (200, 1284346), (280, 917390), (350, 733912), (398, 645400), (400, 642173), (461, 557200), (560, 458695), (700, 366956), (796, 322700), (922, 278600), (995, 258160), (1393, 184400), (1400, 183478), (1592, 161350), (1844, 139300), (1990, 129080), (2305, 111440), (2786, 92200), (2800, 91739), (3184, 80675), (3227, 79600), (3688, 69650), (3980, 64540), (4610, 55720), (4975, 51632), (5572, 46100), (6454, 39800), (6965, 36880), (7376, 34825), (7960, 32270), (9220, 27860), (9950, 25816), (11144, 23050), (11525, 22288), (12908, 19900), (13930, 18440), (15920, 16135)]