257402424

素因数分解:

$2^3\times 3^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{139}}^1$

素因数の和:329

約数の個数: 128

約数和(自身を含む): 709632000

約数和(自身を除く): 452229576

約数列:

[1, 2, 3, 4, 6, 8, 12, 19, 24, 31, 38, 57, 62, 76, 93, 114, 124, 131, 139, 152, 186, 228, 248, 262, 278, 372, 393, 417, 456, 524, 556, 589, 744, 786, 834, 1048, 1112, 1178, 1572, 1668, 1767, 2356, 2489, 2641, 3144, 3336, 3534, 4061, 4309, 4712, 4978, 5282, 7068, 7467, 7923, 8122, 8618, 9956, 10564, 12183, 12927, 14136, 14934, 15846, 16244, 17236, 18209, 19912, 21128, 24366, 25854, 29868, 31692, 32488, 34472, 36418, 48732, 51708, 54627, 59736, 63384, 72836, 77159, 81871, 97464, 103416, 109254, 145672, 154318, 163742, 218508, 231477, 245613, 308636, 327484, 345971, 437016, 462954, 491226, 564479, 617272, 654968, 691942, 925908, 982452, 1037913, 1128958, 1383884, 1693437, 1851816, 1964904, 2075826, 2257916, 2767768, 3386874, 4151652, 4515832, 6773748, 8303304, 10725101, 13547496, 21450202, 32175303, 42900404, 64350606, 85800808, 128701212, 257402424]

約数ペア:

[(1, 257402424), (2, 128701212), (3, 85800808), (4, 64350606), (6, 42900404), (8, 32175303), (12, 21450202), (19, 13547496), (24, 10725101), (31, 8303304), (38, 6773748), (57, 4515832), (62, 4151652), (76, 3386874), (93, 2767768), (114, 2257916), (124, 2075826), (131, 1964904), (139, 1851816), (152, 1693437), (186, 1383884), (228, 1128958), (248, 1037913), (262, 982452), (278, 925908), (372, 691942), (393, 654968), (417, 617272), (456, 564479), (524, 491226), (556, 462954), (589, 437016), (744, 345971), (786, 327484), (834, 308636), (1048, 245613), (1112, 231477), (1178, 218508), (1572, 163742), (1668, 154318), (1767, 145672), (2356, 109254), (2489, 103416), (2641, 97464), (3144, 81871), (3336, 77159), (3534, 72836), (4061, 63384), (4309, 59736), (4712, 54627), (4978, 51708), (5282, 48732), (7068, 36418), (7467, 34472), (7923, 32488), (8122, 31692), (8618, 29868), (9956, 25854), (10564, 24366), (12183, 21128), (12927, 19912), (14136, 18209), (14934, 17236), (15846, 16244)]