221609080

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{211}}^1$

素因数の和:282

約数の個数: 192

約数和(自身を含む): 649635840

約数和(自身を除く): 428026760

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 31, 35, 40, 44, 55, 56, 62, 70, 77, 88, 110, 121, 124, 140, 154, 155, 211, 217, 220, 242, 248, 280, 308, 310, 341, 385, 422, 434, 440, 484, 605, 616, 620, 682, 770, 844, 847, 868, 968, 1055, 1085, 1210, 1240, 1364, 1477, 1540, 1688, 1694, 1705, 1736, 2110, 2170, 2321, 2387, 2420, 2728, 2954, 3080, 3388, 3410, 3751, 4220, 4235, 4340, 4642, 4774, 4840, 5908, 6541, 6776, 6820, 7385, 7502, 8440, 8470, 8680, 9284, 9548, 11605, 11816, 11935, 13082, 13640, 14770, 15004, 16247, 16940, 18568, 18755, 19096, 23210, 23870, 25531, 26164, 26257, 29540, 30008, 32494, 32705, 33880, 37510, 45787, 46420, 47740, 51062, 52328, 52514, 59080, 64988, 65410, 71951, 75020, 81235, 91574, 92840, 95480, 102124, 105028, 127655, 129976, 130820, 131285, 143902, 150040, 162470, 178717, 183148, 204248, 210056, 228935, 255310, 261640, 262570, 287804, 324940, 357434, 359755, 366296, 457870, 503657, 510620, 525140, 575608, 649880, 714868, 719510, 791461, 893585, 915740, 1007314, 1021240, 1050280, 1429736, 1439020, 1582922, 1787170, 1831480, 2014628, 2518285, 2878040, 3165844, 3574340, 3957305, 4029256, 5036570, 5540227, 6331688, 7148680, 7914610, 10073140, 11080454, 15829220, 20146280, 22160908, 27701135, 31658440, 44321816, 55402270, 110804540, 221609080]

約数ペア:

[(1, 221609080), (2, 110804540), (4, 55402270), (5, 44321816), (7, 31658440), (8, 27701135), (10, 22160908), (11, 20146280), (14, 15829220), (20, 11080454), (22, 10073140), (28, 7914610), (31, 7148680), (35, 6331688), (40, 5540227), (44, 5036570), (55, 4029256), (56, 3957305), (62, 3574340), (70, 3165844), (77, 2878040), (88, 2518285), (110, 2014628), (121, 1831480), (124, 1787170), (140, 1582922), (154, 1439020), (155, 1429736), (211, 1050280), (217, 1021240), (220, 1007314), (242, 915740), (248, 893585), (280, 791461), (308, 719510), (310, 714868), (341, 649880), (385, 575608), (422, 525140), (434, 510620), (440, 503657), (484, 457870), (605, 366296), (616, 359755), (620, 357434), (682, 324940), (770, 287804), (844, 262570), (847, 261640), (868, 255310), (968, 228935), (1055, 210056), (1085, 204248), (1210, 183148), (1240, 178717), (1364, 162470), (1477, 150040), (1540, 143902), (1688, 131285), (1694, 130820), (1705, 129976), (1736, 127655), (2110, 105028), (2170, 102124), (2321, 95480), (2387, 92840), (2420, 91574), (2728, 81235), (2954, 75020), (3080, 71951), (3388, 65410), (3410, 64988), (3751, 59080), (4220, 52514), (4235, 52328), (4340, 51062), (4642, 47740), (4774, 46420), (4840, 45787), (5908, 37510), (6541, 33880), (6776, 32705), (6820, 32494), (7385, 30008), (7502, 29540), (8440, 26257), (8470, 26164), (8680, 25531), (9284, 23870), (9548, 23210), (11605, 19096), (11816, 18755), (11935, 18568), (13082, 16940), (13640, 16247), (14770, 15004)]