1268960280

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{21277}}^1$

素因数の和:21369

約数の個数: 128

約数和(自身を含む): 4412206080

約数和(自身を除く): 3143245800

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 71, 84, 105, 120, 140, 142, 168, 210, 213, 280, 284, 355, 420, 426, 497, 568, 710, 840, 852, 994, 1065, 1420, 1491, 1704, 1988, 2130, 2485, 2840, 2982, 3976, 4260, 4970, 5964, 7455, 8520, 9940, 11928, 14910, 19880, 21277, 29820, 42554, 59640, 63831, 85108, 106385, 127662, 148939, 170216, 212770, 255324, 297878, 319155, 425540, 446817, 510648, 595756, 638310, 744695, 851080, 893634, 1191512, 1276620, 1489390, 1510667, 1787268, 2234085, 2553240, 2978780, 3021334, 3574536, 4468170, 4532001, 5957560, 6042668, 7553335, 8936340, 9064002, 10574669, 12085336, 15106670, 17872680, 18128004, 21149338, 22660005, 30213340, 31724007, 36256008, 42298676, 45320010, 52873345, 60426680, 63448014, 84597352, 90640020, 105746690, 126896028, 158620035, 181280040, 211493380, 253792056, 317240070, 422986760, 634480140, 1268960280]

約数ペア:

[(1, 1268960280), (2, 634480140), (3, 422986760), (4, 317240070), (5, 253792056), (6, 211493380), (7, 181280040), (8, 158620035), (10, 126896028), (12, 105746690), (14, 90640020), (15, 84597352), (20, 63448014), (21, 60426680), (24, 52873345), (28, 45320010), (30, 42298676), (35, 36256008), (40, 31724007), (42, 30213340), (56, 22660005), (60, 21149338), (70, 18128004), (71, 17872680), (84, 15106670), (105, 12085336), (120, 10574669), (140, 9064002), (142, 8936340), (168, 7553335), (210, 6042668), (213, 5957560), (280, 4532001), (284, 4468170), (355, 3574536), (420, 3021334), (426, 2978780), (497, 2553240), (568, 2234085), (710, 1787268), (840, 1510667), (852, 1489390), (994, 1276620), (1065, 1191512), (1420, 893634), (1491, 851080), (1704, 744695), (1988, 638310), (2130, 595756), (2485, 510648), (2840, 446817), (2982, 425540), (3976, 319155), (4260, 297878), (4970, 255324), (5964, 212770), (7455, 170216), (8520, 148939), (9940, 127662), (11928, 106385), (14910, 85108), (19880, 63831), (21277, 59640), (29820, 42554)]