20719608

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{179}}^1$

素因数の和:261

約数の個数: 128

約数和(自身を含む): 65318400

約数和(自身を除く): 44598792

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 13, 14, 21, 24, 26, 28, 39, 42, 52, 53, 56, 78, 84, 91, 104, 106, 156, 159, 168, 179, 182, 212, 273, 312, 318, 358, 364, 371, 424, 537, 546, 636, 689, 716, 728, 742, 1074, 1092, 1113, 1253, 1272, 1378, 1432, 1484, 2067, 2148, 2184, 2226, 2327, 2506, 2756, 2968, 3759, 4134, 4296, 4452, 4654, 4823, 5012, 5512, 6981, 7518, 8268, 8904, 9308, 9487, 9646, 10024, 13962, 14469, 15036, 16289, 16536, 18616, 18974, 19292, 27924, 28461, 28938, 30072, 32578, 37948, 38584, 48867, 55848, 56922, 57876, 65156, 66409, 75896, 97734, 113844, 115752, 123331, 130312, 132818, 195468, 199227, 227688, 246662, 265636, 369993, 390936, 398454, 493324, 531272, 739986, 796908, 863317, 986648, 1479972, 1593816, 1726634, 2589951, 2959944, 3453268, 5179902, 6906536, 10359804, 20719608]

約数ペア:

[(1, 20719608), (2, 10359804), (3, 6906536), (4, 5179902), (6, 3453268), (7, 2959944), (8, 2589951), (12, 1726634), (13, 1593816), (14, 1479972), (21, 986648), (24, 863317), (26, 796908), (28, 739986), (39, 531272), (42, 493324), (52, 398454), (53, 390936), (56, 369993), (78, 265636), (84, 246662), (91, 227688), (104, 199227), (106, 195468), (156, 132818), (159, 130312), (168, 123331), (179, 115752), (182, 113844), (212, 97734), (273, 75896), (312, 66409), (318, 65156), (358, 57876), (364, 56922), (371, 55848), (424, 48867), (537, 38584), (546, 37948), (636, 32578), (689, 30072), (716, 28938), (728, 28461), (742, 27924), (1074, 19292), (1092, 18974), (1113, 18616), (1253, 16536), (1272, 16289), (1378, 15036), (1432, 14469), (1484, 13962), (2067, 10024), (2148, 9646), (2184, 9487), (2226, 9308), (2327, 8904), (2506, 8268), (2756, 7518), (2968, 6981), (3759, 5512), (4134, 5012), (4296, 4823), (4452, 4654)]