81186840

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{10739}}^1$

素因数の和:10766

約数の個数: 128

約数和(自身を含む): 309312000

約数和(自身を除く): 228125160

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 54, 56, 60, 63, 70, 72, 84, 90, 105, 108, 120, 126, 135, 140, 168, 180, 189, 210, 216, 252, 270, 280, 315, 360, 378, 420, 504, 540, 630, 756, 840, 945, 1080, 1260, 1512, 1890, 2520, 3780, 7560, 10739, 21478, 32217, 42956, 53695, 64434, 75173, 85912, 96651, 107390, 128868, 150346, 161085, 193302, 214780, 225519, 257736, 289953, 300692, 322170, 375865, 386604, 429560, 451038, 483255, 579906, 601384, 644340, 676557, 751730, 773208, 902076, 966510, 1127595, 1159812, 1288680, 1353114, 1449765, 1503460, 1804152, 1933020, 2029671, 2255190, 2319624, 2706228, 2899530, 3006920, 3382785, 3866040, 4059342, 4510380, 5412456, 5799060, 6765570, 8118684, 9020760, 10148355, 11598120, 13531140, 16237368, 20296710, 27062280, 40593420, 81186840]

約数ペア:

[(1, 81186840), (2, 40593420), (3, 27062280), (4, 20296710), (5, 16237368), (6, 13531140), (7, 11598120), (8, 10148355), (9, 9020760), (10, 8118684), (12, 6765570), (14, 5799060), (15, 5412456), (18, 4510380), (20, 4059342), (21, 3866040), (24, 3382785), (27, 3006920), (28, 2899530), (30, 2706228), (35, 2319624), (36, 2255190), (40, 2029671), (42, 1933020), (45, 1804152), (54, 1503460), (56, 1449765), (60, 1353114), (63, 1288680), (70, 1159812), (72, 1127595), (84, 966510), (90, 902076), (105, 773208), (108, 751730), (120, 676557), (126, 644340), (135, 601384), (140, 579906), (168, 483255), (180, 451038), (189, 429560), (210, 386604), (216, 375865), (252, 322170), (270, 300692), (280, 289953), (315, 257736), (360, 225519), (378, 214780), (420, 193302), (504, 161085), (540, 150346), (630, 128868), (756, 107390), (840, 96651), (945, 85912), (1080, 75173), (1260, 64434), (1512, 53695), (1890, 42956), (2520, 32217), (3780, 21478), (7560, 10739)]