490280280

素因数分解:

$2^3\times 3^1\times 5^1\times 7^2\times {\mathrm{199}}^1\times {\mathrm{419}}^1$

素因数の和:646

約数の個数: 192

約数和(自身を含む): 1723680000

約数和(自身を除く): 1233399720

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 49, 56, 60, 70, 84, 98, 105, 120, 140, 147, 168, 196, 199, 210, 245, 280, 294, 392, 398, 419, 420, 490, 588, 597, 735, 796, 838, 840, 980, 995, 1176, 1194, 1257, 1393, 1470, 1592, 1676, 1960, 1990, 2095, 2388, 2514, 2786, 2933, 2940, 2985, 3352, 3980, 4179, 4190, 4776, 5028, 5572, 5866, 5880, 5970, 6285, 6965, 7960, 8358, 8380, 8799, 9751, 10056, 11144, 11732, 11940, 12570, 13930, 14665, 16716, 16760, 17598, 19502, 20531, 20895, 23464, 23880, 25140, 27860, 29253, 29330, 33432, 35196, 39004, 41062, 41790, 43995, 48755, 50280, 55720, 58506, 58660, 61593, 70392, 78008, 82124, 83381, 83580, 87990, 97510, 102655, 117012, 117320, 123186, 146265, 164248, 166762, 167160, 175980, 195020, 205310, 234024, 246372, 250143, 292530, 307965, 333524, 351960, 390040, 410620, 416905, 492744, 500286, 583667, 585060, 615930, 667048, 821240, 833810, 1000572, 1167334, 1170120, 1231860, 1250715, 1667620, 1751001, 2001144, 2334668, 2463720, 2501430, 2918335, 3335240, 3502002, 4085669, 4669336, 5002860, 5836670, 7004004, 8171338, 8755005, 10005720, 11673340, 12257007, 14008008, 16342676, 17510010, 20428345, 23346680, 24514014, 32685352, 35020020, 40856690, 49028028, 61285035, 70040040, 81713380, 98056056, 122570070, 163426760, 245140140, 490280280]

約数ペア:

[(1, 490280280), (2, 245140140), (3, 163426760), (4, 122570070), (5, 98056056), (6, 81713380), (7, 70040040), (8, 61285035), (10, 49028028), (12, 40856690), (14, 35020020), (15, 32685352), (20, 24514014), (21, 23346680), (24, 20428345), (28, 17510010), (30, 16342676), (35, 14008008), (40, 12257007), (42, 11673340), (49, 10005720), (56, 8755005), (60, 8171338), (70, 7004004), (84, 5836670), (98, 5002860), (105, 4669336), (120, 4085669), (140, 3502002), (147, 3335240), (168, 2918335), (196, 2501430), (199, 2463720), (210, 2334668), (245, 2001144), (280, 1751001), (294, 1667620), (392, 1250715), (398, 1231860), (419, 1170120), (420, 1167334), (490, 1000572), (588, 833810), (597, 821240), (735, 667048), (796, 615930), (838, 585060), (840, 583667), (980, 500286), (995, 492744), (1176, 416905), (1194, 410620), (1257, 390040), (1393, 351960), (1470, 333524), (1592, 307965), (1676, 292530), (1960, 250143), (1990, 246372), (2095, 234024), (2388, 205310), (2514, 195020), (2786, 175980), (2933, 167160), (2940, 166762), (2985, 164248), (3352, 146265), (3980, 123186), (4179, 117320), (4190, 117012), (4776, 102655), (5028, 97510), (5572, 87990), (5866, 83580), (5880, 83381), (5970, 82124), (6285, 78008), (6965, 70392), (7960, 61593), (8358, 58660), (8380, 58506), (8799, 55720), (9751, 50280), (10056, 48755), (11144, 43995), (11732, 41790), (11940, 41062), (12570, 39004), (13930, 35196), (14665, 33432), (16716, 29330), (16760, 29253), (17598, 27860), (19502, 25140), (20531, 23880), (20895, 23464)]