71681688

素因数分解:

$2^3\times 3^2\times {\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{137}}^1$

素因数の和:218

約数の個数: 144

約数和(自身を含む): 216679320

約数和(自身を除く): 144997632

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 36, 39, 43, 52, 72, 78, 86, 104, 117, 129, 137, 156, 169, 172, 234, 258, 274, 312, 338, 344, 387, 411, 468, 507, 516, 548, 559, 676, 774, 822, 936, 1014, 1032, 1096, 1118, 1233, 1352, 1521, 1548, 1644, 1677, 1781, 2028, 2236, 2466, 3042, 3096, 3288, 3354, 3562, 4056, 4472, 4932, 5031, 5343, 5891, 6084, 6708, 7124, 7267, 9864, 10062, 10686, 11782, 12168, 13416, 14248, 14534, 16029, 17673, 20124, 21372, 21801, 23153, 23564, 29068, 32058, 35346, 40248, 42744, 43602, 46306, 47128, 53019, 58136, 64116, 65403, 69459, 70692, 76583, 87204, 92612, 106038, 128232, 130806, 138918, 141384, 153166, 174408, 185224, 208377, 212076, 229749, 261612, 277836, 306332, 416754, 424152, 459498, 523224, 555672, 612664, 689247, 833508, 918996, 995579, 1378494, 1667016, 1837992, 1991158, 2756988, 2986737, 3982316, 5513976, 5973474, 7964632, 8960211, 11946948, 17920422, 23893896, 35840844, 71681688]

約数ペア:

[(1, 71681688), (2, 35840844), (3, 23893896), (4, 17920422), (6, 11946948), (8, 8960211), (9, 7964632), (12, 5973474), (13, 5513976), (18, 3982316), (24, 2986737), (26, 2756988), (36, 1991158), (39, 1837992), (43, 1667016), (52, 1378494), (72, 995579), (78, 918996), (86, 833508), (104, 689247), (117, 612664), (129, 555672), (137, 523224), (156, 459498), (169, 424152), (172, 416754), (234, 306332), (258, 277836), (274, 261612), (312, 229749), (338, 212076), (344, 208377), (387, 185224), (411, 174408), (468, 153166), (507, 141384), (516, 138918), (548, 130806), (559, 128232), (676, 106038), (774, 92612), (822, 87204), (936, 76583), (1014, 70692), (1032, 69459), (1096, 65403), (1118, 64116), (1233, 58136), (1352, 53019), (1521, 47128), (1548, 46306), (1644, 43602), (1677, 42744), (1781, 40248), (2028, 35346), (2236, 32058), (2466, 29068), (3042, 23564), (3096, 23153), (3288, 21801), (3354, 21372), (3562, 20124), (4056, 17673), (4472, 16029), (4932, 14534), (5031, 14248), (5343, 13416), (5891, 12168), (6084, 11782), (6708, 10686), (7124, 10062), (7267, 9864)]