68390280

素因数分解:

$2^3\times 3^2\times 5^1\times 7^2\times {\mathrm{3877}}^1$

素因数の和:3908

約数の個数: 144

約数和(自身を含む): 258623820

約数和(自身を除く): 190233540

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 49, 56, 60, 63, 70, 72, 84, 90, 98, 105, 120, 126, 140, 147, 168, 180, 196, 210, 245, 252, 280, 294, 315, 360, 392, 420, 441, 490, 504, 588, 630, 735, 840, 882, 980, 1176, 1260, 1470, 1764, 1960, 2205, 2520, 2940, 3528, 3877, 4410, 5880, 7754, 8820, 11631, 15508, 17640, 19385, 23262, 27139, 31016, 34893, 38770, 46524, 54278, 58155, 69786, 77540, 81417, 93048, 108556, 116310, 135695, 139572, 155080, 162834, 174465, 189973, 217112, 232620, 244251, 271390, 279144, 325668, 348930, 379946, 407085, 465240, 488502, 542780, 569919, 651336, 697860, 759892, 814170, 949865, 977004, 1085560, 1139838, 1221255, 1395720, 1519784, 1628340, 1709757, 1899730, 1954008, 2279676, 2442510, 2849595, 3256680, 3419514, 3799460, 4559352, 4885020, 5699190, 6839028, 7598920, 8548785, 9770040, 11398380, 13678056, 17097570, 22796760, 34195140, 68390280]

約数ペア:

[(1, 68390280), (2, 34195140), (3, 22796760), (4, 17097570), (5, 13678056), (6, 11398380), (7, 9770040), (8, 8548785), (9, 7598920), (10, 6839028), (12, 5699190), (14, 4885020), (15, 4559352), (18, 3799460), (20, 3419514), (21, 3256680), (24, 2849595), (28, 2442510), (30, 2279676), (35, 1954008), (36, 1899730), (40, 1709757), (42, 1628340), (45, 1519784), (49, 1395720), (56, 1221255), (60, 1139838), (63, 1085560), (70, 977004), (72, 949865), (84, 814170), (90, 759892), (98, 697860), (105, 651336), (120, 569919), (126, 542780), (140, 488502), (147, 465240), (168, 407085), (180, 379946), (196, 348930), (210, 325668), (245, 279144), (252, 271390), (280, 244251), (294, 232620), (315, 217112), (360, 189973), (392, 174465), (420, 162834), (441, 155080), (490, 139572), (504, 135695), (588, 116310), (630, 108556), (735, 93048), (840, 81417), (882, 77540), (980, 69786), (1176, 58155), (1260, 54278), (1470, 46524), (1764, 38770), (1960, 34893), (2205, 31016), (2520, 27139), (2940, 23262), (3528, 19385), (3877, 17640), (4410, 15508), (5880, 11631), (7754, 8820)]