28799820

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{401}}^1$

素因数の和:445

約数の個数: 192

約数和(自身を含む): 108057600

約数和(自身を除く): 79257780

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, 401, 420, 513, 532, 540, 570, 630, 665, 684, 756, 798, 802, 855, 945, 1026, 1140, 1197, 1203, 1260, 1330, 1596, 1604, 1710, 1890, 1995, 2005, 2052, 2394, 2406, 2565, 2660, 2807, 3420, 3591, 3609, 3780, 3990, 4010, 4788, 4812, 5130, 5614, 5985, 6015, 7182, 7218, 7619, 7980, 8020, 8421, 10260, 10827, 11228, 11970, 12030, 14035, 14364, 14436, 15238, 16842, 17955, 18045, 21654, 22857, 23940, 24060, 25263, 28070, 30476, 33684, 35910, 36090, 38095, 42105, 43308, 45714, 50526, 53333, 54135, 56140, 68571, 71820, 72180, 75789, 76190, 84210, 91428, 101052, 106666, 108270, 114285, 126315, 137142, 151578, 152380, 159999, 168420, 205713, 213332, 216540, 228570, 252630, 266665, 274284, 303156, 319998, 342855, 378945, 411426, 457140, 479997, 505260, 533330, 639996, 685710, 757890, 799995, 822852, 959994, 1028565, 1066660, 1371420, 1439991, 1515780, 1599990, 1919988, 2057130, 2399985, 2879982, 3199980, 4114260, 4799970, 5759964, 7199955, 9599940, 14399910, 28799820]

約数ペア:

[(1, 28799820), (2, 14399910), (3, 9599940), (4, 7199955), (5, 5759964), (6, 4799970), (7, 4114260), (9, 3199980), (10, 2879982), (12, 2399985), (14, 2057130), (15, 1919988), (18, 1599990), (19, 1515780), (20, 1439991), (21, 1371420), (27, 1066660), (28, 1028565), (30, 959994), (35, 822852), (36, 799995), (38, 757890), (42, 685710), (45, 639996), (54, 533330), (57, 505260), (60, 479997), (63, 457140), (70, 411426), (76, 378945), (84, 342855), (90, 319998), (95, 303156), (105, 274284), (108, 266665), (114, 252630), (126, 228570), (133, 216540), (135, 213332), (140, 205713), (171, 168420), (180, 159999), (189, 152380), (190, 151578), (210, 137142), (228, 126315), (252, 114285), (266, 108270), (270, 106666), (285, 101052), (315, 91428), (342, 84210), (378, 76190), (380, 75789), (399, 72180), (401, 71820), (420, 68571), (513, 56140), (532, 54135), (540, 53333), (570, 50526), (630, 45714), (665, 43308), (684, 42105), (756, 38095), (798, 36090), (802, 35910), (855, 33684), (945, 30476), (1026, 28070), (1140, 25263), (1197, 24060), (1203, 23940), (1260, 22857), (1330, 21654), (1596, 18045), (1604, 17955), (1710, 16842), (1890, 15238), (1995, 14436), (2005, 14364), (2052, 14035), (2394, 12030), (2406, 11970), (2565, 11228), (2660, 10827), (2807, 10260), (3420, 8421), (3591, 8020), (3609, 7980), (3780, 7619), (3990, 7218), (4010, 7182), (4788, 6015), (4812, 5985), (5130, 5614)]