81004560

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{3709}}^1$

素因数の和:3745

約数の個数: 160

約数和(自身を含む): 309146880

約数和(自身を除く): 228142320

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, 3709, 4368, 5460, 7280, 7418, 10920, 11127, 14836, 18545, 21840, 22254, 25963, 29672, 37090, 44508, 48217, 51926, 55635, 59344, 74180, 77889, 89016, 96434, 103852, 111270, 129815, 144651, 148360, 155778, 178032, 192868, 207704, 222540, 241085, 259630, 289302, 296720, 311556, 337519, 385736, 389445, 415408, 445080, 482170, 519260, 578604, 623112, 675038, 723255, 771472, 778890, 890160, 964340, 1012557, 1038520, 1157208, 1246224, 1350076, 1446510, 1557780, 1687595, 1928680, 2025114, 2077040, 2314416, 2700152, 2893020, 3115560, 3375190, 3857360, 4050228, 5062785, 5400304, 5786040, 6231120, 6750380, 8100456, 10125570, 11572080, 13500760, 16200912, 20251140, 27001520, 40502280, 81004560]

約数ペア:

[(1, 81004560), (2, 40502280), (3, 27001520), (4, 20251140), (5, 16200912), (6, 13500760), (7, 11572080), (8, 10125570), (10, 8100456), (12, 6750380), (13, 6231120), (14, 5786040), (15, 5400304), (16, 5062785), (20, 4050228), (21, 3857360), (24, 3375190), (26, 3115560), (28, 2893020), (30, 2700152), (35, 2314416), (39, 2077040), (40, 2025114), (42, 1928680), (48, 1687595), (52, 1557780), (56, 1446510), (60, 1350076), (65, 1246224), (70, 1157208), (78, 1038520), (80, 1012557), (84, 964340), (91, 890160), (104, 778890), (105, 771472), (112, 723255), (120, 675038), (130, 623112), (140, 578604), (156, 519260), (168, 482170), (182, 445080), (195, 415408), (208, 389445), (210, 385736), (240, 337519), (260, 311556), (273, 296720), (280, 289302), (312, 259630), (336, 241085), (364, 222540), (390, 207704), (420, 192868), (455, 178032), (520, 155778), (546, 148360), (560, 144651), (624, 129815), (728, 111270), (780, 103852), (840, 96434), (910, 89016), (1040, 77889), (1092, 74180), (1365, 59344), (1456, 55635), (1560, 51926), (1680, 48217), (1820, 44508), (2184, 37090), (2730, 29672), (3120, 25963), (3640, 22254), (3709, 21840), (4368, 18545), (5460, 14836), (7280, 11127), (7418, 10920)]