646131456

素因数分解:

$2^8\times 3^2\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{137}}^1$

素因数の和:271

約数の個数: 216

約数和(自身を含む): 1980145440

約数和(自身を除く): 1334013984

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 23, 24, 32, 36, 46, 48, 64, 69, 72, 89, 92, 96, 128, 137, 138, 144, 178, 184, 192, 207, 256, 267, 274, 276, 288, 356, 368, 384, 411, 414, 534, 548, 552, 576, 712, 736, 768, 801, 822, 828, 1068, 1096, 1104, 1152, 1233, 1424, 1472, 1602, 1644, 1656, 2047, 2136, 2192, 2208, 2304, 2466, 2848, 2944, 3151, 3204, 3288, 3312, 4094, 4272, 4384, 4416, 4932, 5696, 5888, 6141, 6302, 6408, 6576, 6624, 8188, 8544, 8768, 8832, 9453, 9864, 11392, 12193, 12282, 12604, 12816, 13152, 13248, 16376, 17088, 17536, 17664, 18423, 18906, 19728, 22784, 24386, 24564, 25208, 25632, 26304, 26496, 28359, 32752, 34176, 35072, 36579, 36846, 37812, 39456, 48772, 49128, 50416, 51264, 52608, 52992, 56718, 65504, 68352, 73158, 73692, 75624, 78912, 97544, 98256, 100832, 102528, 105216, 109737, 113436, 131008, 146316, 147384, 151248, 157824, 195088, 196512, 201664, 205056, 219474, 226872, 262016, 280439, 292632, 294768, 302496, 315648, 390176, 393024, 403328, 438948, 453744, 524032, 560878, 585264, 589536, 604992, 780352, 786048, 806656, 841317, 877896, 907488, 1121756, 1170528, 1179072, 1209984, 1560704, 1572096, 1682634, 1755792, 1814976, 2243512, 2341056, 2358144, 2419968, 2523951, 3121408, 3365268, 3511584, 3629952, 4487024, 4682112, 4716288, 5047902, 6730536, 7023168, 7259904, 8974048, 9364224, 10095804, 13461072, 14046336, 17948096, 20191608, 26922144, 28092672, 35896192, 40383216, 53844288, 71792384, 80766432, 107688576, 161532864, 215377152, 323065728, 646131456]

約数ペア:

[(1, 646131456), (2, 323065728), (3, 215377152), (4, 161532864), (6, 107688576), (8, 80766432), (9, 71792384), (12, 53844288), (16, 40383216), (18, 35896192), (23, 28092672), (24, 26922144), (32, 20191608), (36, 17948096), (46, 14046336), (48, 13461072), (64, 10095804), (69, 9364224), (72, 8974048), (89, 7259904), (92, 7023168), (96, 6730536), (128, 5047902), (137, 4716288), (138, 4682112), (144, 4487024), (178, 3629952), (184, 3511584), (192, 3365268), (207, 3121408), (256, 2523951), (267, 2419968), (274, 2358144), (276, 2341056), (288, 2243512), (356, 1814976), (368, 1755792), (384, 1682634), (411, 1572096), (414, 1560704), (534, 1209984), (548, 1179072), (552, 1170528), (576, 1121756), (712, 907488), (736, 877896), (768, 841317), (801, 806656), (822, 786048), (828, 780352), (1068, 604992), (1096, 589536), (1104, 585264), (1152, 560878), (1233, 524032), (1424, 453744), (1472, 438948), (1602, 403328), (1644, 393024), (1656, 390176), (2047, 315648), (2136, 302496), (2192, 294768), (2208, 292632), (2304, 280439), (2466, 262016), (2848, 226872), (2944, 219474), (3151, 205056), (3204, 201664), (3288, 196512), (3312, 195088), (4094, 157824), (4272, 151248), (4384, 147384), (4416, 146316), (4932, 131008), (5696, 113436), (5888, 109737), (6141, 105216), (6302, 102528), (6408, 100832), (6576, 98256), (6624, 97544), (8188, 78912), (8544, 75624), (8768, 73692), (8832, 73158), (9453, 68352), (9864, 65504), (11392, 56718), (12193, 52992), (12282, 52608), (12604, 51264), (12816, 50416), (13152, 49128), (13248, 48772), (16376, 39456), (17088, 37812), (17536, 36846), (17664, 36579), (18423, 35072), (18906, 34176), (19728, 32752), (22784, 28359), (24386, 26496), (24564, 26304), (25208, 25632)]