688899120

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31543}}^1$

素因数の和:31579

約数の個数: 160

約数和(自身を含む): 2628498432

約数和(自身を除く): 1939599312

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 16, 20, 21, 24, 26, 28, 30, 35, 39, 40, 42, 48, 52, 56, 60, 65, 70, 78, 80, 84, 91, 104, 105, 112, 120, 130, 140, 156, 168, 182, 195, 208, 210, 240, 260, 273, 280, 312, 336, 364, 390, 420, 455, 520, 546, 560, 624, 728, 780, 840, 910, 1040, 1092, 1365, 1456, 1560, 1680, 1820, 2184, 2730, 3120, 3640, 4368, 5460, 7280, 10920, 21840, 31543, 63086, 94629, 126172, 157715, 189258, 220801, 252344, 315430, 378516, 410059, 441602, 473145, 504688, 630860, 662403, 757032, 820118, 883204, 946290, 1104005, 1230177, 1261720, 1324806, 1514064, 1640236, 1766408, 1892580, 2050295, 2208010, 2460354, 2523440, 2649612, 2870413, 3280472, 3312015, 3532816, 3785160, 4100590, 4416020, 4920708, 5299224, 5740826, 6150885, 6560944, 6624030, 7570320, 8201180, 8611239, 8832040, 9841416, 10598448, 11481652, 12301770, 13248060, 14352065, 16402360, 17222478, 17664080, 19682832, 22963304, 24603540, 26496120, 28704130, 32804720, 34444956, 43056195, 45926608, 49207080, 52992240, 57408260, 68889912, 86112390, 98414160, 114816520, 137779824, 172224780, 229633040, 344449560, 688899120]

約数ペア:

[(1, 688899120), (2, 344449560), (3, 229633040), (4, 172224780), (5, 137779824), (6, 114816520), (7, 98414160), (8, 86112390), (10, 68889912), (12, 57408260), (13, 52992240), (14, 49207080), (15, 45926608), (16, 43056195), (20, 34444956), (21, 32804720), (24, 28704130), (26, 26496120), (28, 24603540), (30, 22963304), (35, 19682832), (39, 17664080), (40, 17222478), (42, 16402360), (48, 14352065), (52, 13248060), (56, 12301770), (60, 11481652), (65, 10598448), (70, 9841416), (78, 8832040), (80, 8611239), (84, 8201180), (91, 7570320), (104, 6624030), (105, 6560944), (112, 6150885), (120, 5740826), (130, 5299224), (140, 4920708), (156, 4416020), (168, 4100590), (182, 3785160), (195, 3532816), (208, 3312015), (210, 3280472), (240, 2870413), (260, 2649612), (273, 2523440), (280, 2460354), (312, 2208010), (336, 2050295), (364, 1892580), (390, 1766408), (420, 1640236), (455, 1514064), (520, 1324806), (546, 1261720), (560, 1230177), (624, 1104005), (728, 946290), (780, 883204), (840, 820118), (910, 757032), (1040, 662403), (1092, 630860), (1365, 504688), (1456, 473145), (1560, 441602), (1680, 410059), (1820, 378516), (2184, 315430), (2730, 252344), (3120, 220801), (3640, 189258), (4368, 157715), (5460, 126172), (7280, 94629), (10920, 63086), (21840, 31543)]