71820

素因数分解:

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

素因数の和:44

約数の個数: 96

約数和(自身を含む): 268800

約数和(自身を除く): 196980

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 19, 20, 21, 27, 28, 30, 35, 36, 38, 42, 45, 54, 57, 60, 63, 70, 76, 84, 90, 95, 105, 108, 114, 126, 133, 135, 140, 171, 180, 189, 190, 210, 228, 252, 266, 270, 285, 315, 342, 378, 380, 399, 420, 513, 532, 540, 570, 630, 665, 684, 756, 798, 855, 945, 1026, 1140, 1197, 1260, 1330, 1596, 1710, 1890, 1995, 2052, 2394, 2565, 2660, 3420, 3591, 3780, 3990, 4788, 5130, 5985, 7182, 7980, 10260, 11970, 14364, 17955, 23940, 35910, 71820]

約数ペア:

[(1, 71820), (2, 35910), (3, 23940), (4, 17955), (5, 14364), (6, 11970), (7, 10260), (9, 7980), (10, 7182), (12, 5985), (14, 5130), (15, 4788), (18, 3990), (19, 3780), (20, 3591), (21, 3420), (27, 2660), (28, 2565), (30, 2394), (35, 2052), (36, 1995), (38, 1890), (42, 1710), (45, 1596), (54, 1330), (57, 1260), (60, 1197), (63, 1140), (70, 1026), (76, 945), (84, 855), (90, 798), (95, 756), (105, 684), (108, 665), (114, 630), (126, 570), (133, 540), (135, 532), (140, 513), (171, 420), (180, 399), (189, 380), (190, 378), (210, 342), (228, 315), (252, 285), (266, 270)]