81659760

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{3739}}^1$

素因数の和:3775

約数の個数: 160

約数和(自身を含む): 311646720

約数和(自身を除く): 229986960

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, 3739, 4368, 5460, 7280, 7478, 10920, 11217, 14956, 18695, 21840, 22434, 26173, 29912, 37390, 44868, 48607, 52346, 56085, 59824, 74780, 78519, 89736, 97214, 104692, 112170, 130865, 145821, 149560, 157038, 179472, 194428, 209384, 224340, 243035, 261730, 291642, 299120, 314076, 340249, 388856, 392595, 418768, 448680, 486070, 523460, 583284, 628152, 680498, 729105, 777712, 785190, 897360, 972140, 1020747, 1046920, 1166568, 1256304, 1360996, 1458210, 1570380, 1701245, 1944280, 2041494, 2093840, 2333136, 2721992, 2916420, 3140760, 3402490, 3888560, 4082988, 5103735, 5443984, 5832840, 6281520, 6804980, 8165976, 10207470, 11665680, 13609960, 16331952, 20414940, 27219920, 40829880, 81659760]

約数ペア:

[(1, 81659760), (2, 40829880), (3, 27219920), (4, 20414940), (5, 16331952), (6, 13609960), (7, 11665680), (8, 10207470), (10, 8165976), (12, 6804980), (13, 6281520), (14, 5832840), (15, 5443984), (16, 5103735), (20, 4082988), (21, 3888560), (24, 3402490), (26, 3140760), (28, 2916420), (30, 2721992), (35, 2333136), (39, 2093840), (40, 2041494), (42, 1944280), (48, 1701245), (52, 1570380), (56, 1458210), (60, 1360996), (65, 1256304), (70, 1166568), (78, 1046920), (80, 1020747), (84, 972140), (91, 897360), (104, 785190), (105, 777712), (112, 729105), (120, 680498), (130, 628152), (140, 583284), (156, 523460), (168, 486070), (182, 448680), (195, 418768), (208, 392595), (210, 388856), (240, 340249), (260, 314076), (273, 299120), (280, 291642), (312, 261730), (336, 243035), (364, 224340), (390, 209384), (420, 194428), (455, 179472), (520, 157038), (546, 149560), (560, 145821), (624, 130865), (728, 112170), (780, 104692), (840, 97214), (910, 89736), (1040, 78519), (1092, 74780), (1365, 59824), (1456, 56085), (1560, 52346), (1680, 48607), (1820, 44868), (2184, 37390), (2730, 29912), (3120, 26173), (3640, 22434), (3739, 21840), (4368, 18695), (5460, 14956), (7280, 11217), (7478, 10920)]