81949140

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{5003}}^1$

素因数の和:5038

約数の個数: 144

約数和(自身を含む): 306004608

約数和(自身を除く): 224055468

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 13, 14, 15, 18, 20, 21, 26, 28, 30, 35, 36, 39, 42, 45, 52, 60, 63, 65, 70, 78, 84, 90, 91, 105, 117, 126, 130, 140, 156, 180, 182, 195, 210, 234, 252, 260, 273, 315, 364, 390, 420, 455, 468, 546, 585, 630, 780, 819, 910, 1092, 1170, 1260, 1365, 1638, 1820, 2340, 2730, 3276, 4095, 5003, 5460, 8190, 10006, 15009, 16380, 20012, 25015, 30018, 35021, 45027, 50030, 60036, 65039, 70042, 75045, 90054, 100060, 105063, 130078, 140084, 150090, 175105, 180108, 195117, 210126, 225135, 260156, 300180, 315189, 325195, 350210, 390234, 420252, 450270, 455273, 525315, 585351, 630378, 650390, 700420, 780468, 900540, 910546, 975585, 1050630, 1170702, 1260756, 1300780, 1365819, 1575945, 1821092, 1951170, 2101260, 2276365, 2341404, 2731638, 2926755, 3151890, 3902340, 4097457, 4552730, 5463276, 5853510, 6303780, 6829095, 8194914, 9105460, 11707020, 13658190, 16389828, 20487285, 27316380, 40974570, 81949140]

約数ペア:

[(1, 81949140), (2, 40974570), (3, 27316380), (4, 20487285), (5, 16389828), (6, 13658190), (7, 11707020), (9, 9105460), (10, 8194914), (12, 6829095), (13, 6303780), (14, 5853510), (15, 5463276), (18, 4552730), (20, 4097457), (21, 3902340), (26, 3151890), (28, 2926755), (30, 2731638), (35, 2341404), (36, 2276365), (39, 2101260), (42, 1951170), (45, 1821092), (52, 1575945), (60, 1365819), (63, 1300780), (65, 1260756), (70, 1170702), (78, 1050630), (84, 975585), (90, 910546), (91, 900540), (105, 780468), (117, 700420), (126, 650390), (130, 630378), (140, 585351), (156, 525315), (180, 455273), (182, 450270), (195, 420252), (210, 390234), (234, 350210), (252, 325195), (260, 315189), (273, 300180), (315, 260156), (364, 225135), (390, 210126), (420, 195117), (455, 180108), (468, 175105), (546, 150090), (585, 140084), (630, 130078), (780, 105063), (819, 100060), (910, 90054), (1092, 75045), (1170, 70042), (1260, 65039), (1365, 60036), (1638, 50030), (1820, 45027), (2340, 35021), (2730, 30018), (3276, 25015), (4095, 20012), (5003, 16380), (5460, 15009), (8190, 10006)]