12778920

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{461}}^1$

素因数の和:496

約数の個数: 192

約数和(自身を含む): 51891840

約数和(自身を除く): 39112920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 18, 20, 21, 22, 24, 28, 30, 33, 35, 36, 40, 42, 44, 45, 55, 56, 60, 63, 66, 70, 72, 77, 84, 88, 90, 99, 105, 110, 120, 126, 132, 140, 154, 165, 168, 180, 198, 210, 220, 231, 252, 264, 280, 308, 315, 330, 360, 385, 396, 420, 440, 461, 462, 495, 504, 616, 630, 660, 693, 770, 792, 840, 922, 924, 990, 1155, 1260, 1320, 1383, 1386, 1540, 1844, 1848, 1980, 2305, 2310, 2520, 2766, 2772, 3080, 3227, 3465, 3688, 3960, 4149, 4610, 4620, 5071, 5532, 5544, 6454, 6915, 6930, 8298, 9220, 9240, 9681, 10142, 11064, 12908, 13830, 13860, 15213, 16135, 16596, 18440, 19362, 20284, 20745, 25355, 25816, 27660, 27720, 29043, 30426, 32270, 33192, 35497, 38724, 40568, 41490, 45639, 48405, 50710, 55320, 58086, 60852, 64540, 70994, 76065, 77448, 82980, 91278, 96810, 101420, 106491, 116172, 121704, 129080, 141988, 145215, 152130, 165960, 177485, 182556, 193620, 202840, 212982, 228195, 232344, 283976, 290430, 304260, 319473, 354970, 365112, 387240, 425964, 456390, 532455, 580860, 608520, 638946, 709940, 851928, 912780, 1064910, 1161720, 1277892, 1419880, 1597365, 1825560, 2129820, 2555784, 3194730, 4259640, 6389460, 12778920]

約数ペア:

[(1, 12778920), (2, 6389460), (3, 4259640), (4, 3194730), (5, 2555784), (6, 2129820), (7, 1825560), (8, 1597365), (9, 1419880), (10, 1277892), (11, 1161720), (12, 1064910), (14, 912780), (15, 851928), (18, 709940), (20, 638946), (21, 608520), (22, 580860), (24, 532455), (28, 456390), (30, 425964), (33, 387240), (35, 365112), (36, 354970), (40, 319473), (42, 304260), (44, 290430), (45, 283976), (55, 232344), (56, 228195), (60, 212982), (63, 202840), (66, 193620), (70, 182556), (72, 177485), (77, 165960), (84, 152130), (88, 145215), (90, 141988), (99, 129080), (105, 121704), (110, 116172), (120, 106491), (126, 101420), (132, 96810), (140, 91278), (154, 82980), (165, 77448), (168, 76065), (180, 70994), (198, 64540), (210, 60852), (220, 58086), (231, 55320), (252, 50710), (264, 48405), (280, 45639), (308, 41490), (315, 40568), (330, 38724), (360, 35497), (385, 33192), (396, 32270), (420, 30426), (440, 29043), (461, 27720), (462, 27660), (495, 25816), (504, 25355), (616, 20745), (630, 20284), (660, 19362), (693, 18440), (770, 16596), (792, 16135), (840, 15213), (922, 13860), (924, 13830), (990, 12908), (1155, 11064), (1260, 10142), (1320, 9681), (1383, 9240), (1386, 9220), (1540, 8298), (1844, 6930), (1848, 6915), (1980, 6454), (2305, 5544), (2310, 5532), (2520, 5071), (2766, 4620), (2772, 4610), (3080, 4149), (3227, 3960), (3465, 3688)]