81407970

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{2267}}^1$

素因数の和:2309

約数の個数: 128

約数和(自身を含む): 261273600

約数和(自身を除く): 179865630

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 19, 21, 27, 30, 35, 38, 42, 45, 54, 57, 63, 70, 90, 95, 105, 114, 126, 133, 135, 171, 189, 190, 210, 266, 270, 285, 315, 342, 378, 399, 513, 570, 630, 665, 798, 855, 945, 1026, 1197, 1330, 1710, 1890, 1995, 2267, 2394, 2565, 3591, 3990, 4534, 5130, 5985, 6801, 7182, 11335, 11970, 13602, 15869, 17955, 20403, 22670, 31738, 34005, 35910, 40806, 43073, 47607, 61209, 68010, 79345, 86146, 95214, 102015, 122418, 129219, 142821, 158690, 204030, 215365, 238035, 258438, 285642, 301511, 306045, 387657, 428463, 430730, 476070, 603022, 612090, 646095, 714105, 775314, 856926, 904533, 1162971, 1292190, 1428210, 1507555, 1809066, 1938285, 2142315, 2325942, 2713599, 3015110, 3876570, 4284630, 4522665, 5427198, 5814855, 8140797, 9045330, 11629710, 13567995, 16281594, 27135990, 40703985, 81407970]

約数ペア:

[(1, 81407970), (2, 40703985), (3, 27135990), (5, 16281594), (6, 13567995), (7, 11629710), (9, 9045330), (10, 8140797), (14, 5814855), (15, 5427198), (18, 4522665), (19, 4284630), (21, 3876570), (27, 3015110), (30, 2713599), (35, 2325942), (38, 2142315), (42, 1938285), (45, 1809066), (54, 1507555), (57, 1428210), (63, 1292190), (70, 1162971), (90, 904533), (95, 856926), (105, 775314), (114, 714105), (126, 646095), (133, 612090), (135, 603022), (171, 476070), (189, 430730), (190, 428463), (210, 387657), (266, 306045), (270, 301511), (285, 285642), (315, 258438), (342, 238035), (378, 215365), (399, 204030), (513, 158690), (570, 142821), (630, 129219), (665, 122418), (798, 102015), (855, 95214), (945, 86146), (1026, 79345), (1197, 68010), (1330, 61209), (1710, 47607), (1890, 43073), (1995, 40806), (2267, 35910), (2394, 34005), (2565, 31738), (3591, 22670), (3990, 20403), (4534, 17955), (5130, 15869), (5985, 13602), (6801, 11970), (7182, 11335)]