217778220

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{11}}^3\times {\mathrm{101}}^1$

素因数の和:155

約数の個数: 240

約数和(自身を含む): 758884896

約数和(自身を除く): 541106676

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 27, 30, 33, 36, 44, 45, 54, 55, 60, 66, 81, 90, 99, 101, 108, 110, 121, 132, 135, 162, 165, 180, 198, 202, 220, 242, 270, 297, 303, 324, 330, 363, 396, 404, 405, 484, 495, 505, 540, 594, 605, 606, 660, 726, 810, 891, 909, 990, 1010, 1089, 1111, 1188, 1210, 1212, 1331, 1452, 1485, 1515, 1620, 1782, 1815, 1818, 1980, 2020, 2178, 2222, 2420, 2662, 2727, 2970, 3030, 3267, 3333, 3564, 3630, 3636, 3993, 4356, 4444, 4455, 4545, 5324, 5445, 5454, 5555, 5940, 6060, 6534, 6655, 6666, 7260, 7986, 8181, 8910, 9090, 9801, 9999, 10890, 10908, 11110, 11979, 12221, 13068, 13310, 13332, 13635, 15972, 16335, 16362, 16665, 17820, 18180, 19602, 19965, 19998, 21780, 22220, 23958, 24442, 26620, 27270, 29997, 32670, 32724, 33330, 35937, 36663, 39204, 39930, 39996, 40905, 47916, 48884, 49005, 49995, 54540, 59895, 59994, 61105, 65340, 66660, 71874, 73326, 79860, 81810, 89991, 98010, 99990, 107811, 109989, 119790, 119988, 122210, 134431, 143748, 146652, 149985, 163620, 179685, 179982, 183315, 196020, 199980, 215622, 219978, 239580, 244420, 268862, 299970, 329967, 359370, 359964, 366630, 403293, 431244, 439956, 449955, 537724, 539055, 549945, 599940, 659934, 672155, 718740, 733260, 806586, 899910, 989901, 1078110, 1099890, 1209879, 1319868, 1344310, 1613172, 1649835, 1799820, 1979802, 2016465, 2156220, 2199780, 2419758, 2688620, 3299670, 3629637, 3959604, 4032930, 4839516, 4949505, 6049395, 6599340, 7259274, 8065860, 9899010, 10888911, 12098790, 14518548, 18148185, 19798020, 21777822, 24197580, 36296370, 43555644, 54444555, 72592740, 108889110, 217778220]

約数ペア:

[(1, 217778220), (2, 108889110), (3, 72592740), (4, 54444555), (5, 43555644), (6, 36296370), (9, 24197580), (10, 21777822), (11, 19798020), (12, 18148185), (15, 14518548), (18, 12098790), (20, 10888911), (22, 9899010), (27, 8065860), (30, 7259274), (33, 6599340), (36, 6049395), (44, 4949505), (45, 4839516), (54, 4032930), (55, 3959604), (60, 3629637), (66, 3299670), (81, 2688620), (90, 2419758), (99, 2199780), (101, 2156220), (108, 2016465), (110, 1979802), (121, 1799820), (132, 1649835), (135, 1613172), (162, 1344310), (165, 1319868), (180, 1209879), (198, 1099890), (202, 1078110), (220, 989901), (242, 899910), (270, 806586), (297, 733260), (303, 718740), (324, 672155), (330, 659934), (363, 599940), (396, 549945), (404, 539055), (405, 537724), (484, 449955), (495, 439956), (505, 431244), (540, 403293), (594, 366630), (605, 359964), (606, 359370), (660, 329967), (726, 299970), (810, 268862), (891, 244420), (909, 239580), (990, 219978), (1010, 215622), (1089, 199980), (1111, 196020), (1188, 183315), (1210, 179982), (1212, 179685), (1331, 163620), (1452, 149985), (1485, 146652), (1515, 143748), (1620, 134431), (1782, 122210), (1815, 119988), (1818, 119790), (1980, 109989), (2020, 107811), (2178, 99990), (2222, 98010), (2420, 89991), (2662, 81810), (2727, 79860), (2970, 73326), (3030, 71874), (3267, 66660), (3333, 65340), (3564, 61105), (3630, 59994), (3636, 59895), (3993, 54540), (4356, 49995), (4444, 49005), (4455, 48884), (4545, 47916), (5324, 40905), (5445, 39996), (5454, 39930), (5555, 39204), (5940, 36663), (6060, 35937), (6534, 33330), (6655, 32724), (6666, 32670), (7260, 29997), (7986, 27270), (8181, 26620), (8910, 24442), (9090, 23958), (9801, 22220), (9999, 21780), (10890, 19998), (10908, 19965), (11110, 19602), (11979, 18180), (12221, 17820), (13068, 16665), (13310, 16362), (13332, 16335), (13635, 15972)]