640153472

素因数分解:

$2^7\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1213}}^1$

素因数の和:1284

約数の個数: 128

約数和(自身を含む): 1584998400

約数和(自身を除く): 944844928

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 31, 32, 38, 56, 62, 64, 76, 112, 124, 128, 133, 152, 217, 224, 248, 266, 304, 434, 448, 496, 532, 589, 608, 868, 896, 992, 1064, 1178, 1213, 1216, 1736, 1984, 2128, 2356, 2426, 2432, 3472, 3968, 4123, 4256, 4712, 4852, 6944, 8246, 8491, 8512, 9424, 9704, 13888, 16492, 16982, 17024, 18848, 19408, 23047, 27776, 32984, 33964, 37603, 37696, 38816, 46094, 65968, 67928, 75206, 75392, 77632, 92188, 131936, 135856, 150412, 155264, 161329, 184376, 263221, 263872, 271712, 300824, 322658, 368752, 526442, 527744, 543424, 601648, 645316, 714457, 737504, 1052884, 1086848, 1203296, 1290632, 1428914, 1475008, 2105768, 2406592, 2581264, 2857828, 2950016, 4211536, 4813184, 5001199, 5162528, 5715656, 8423072, 10002398, 10325056, 11431312, 16846144, 20004796, 20650112, 22862624, 33692288, 40009592, 45725248, 80019184, 91450496, 160038368, 320076736, 640153472]

約数ペア:

[(1, 640153472), (2, 320076736), (4, 160038368), (7, 91450496), (8, 80019184), (14, 45725248), (16, 40009592), (19, 33692288), (28, 22862624), (31, 20650112), (32, 20004796), (38, 16846144), (56, 11431312), (62, 10325056), (64, 10002398), (76, 8423072), (112, 5715656), (124, 5162528), (128, 5001199), (133, 4813184), (152, 4211536), (217, 2950016), (224, 2857828), (248, 2581264), (266, 2406592), (304, 2105768), (434, 1475008), (448, 1428914), (496, 1290632), (532, 1203296), (589, 1086848), (608, 1052884), (868, 737504), (896, 714457), (992, 645316), (1064, 601648), (1178, 543424), (1213, 527744), (1216, 526442), (1736, 368752), (1984, 322658), (2128, 300824), (2356, 271712), (2426, 263872), (2432, 263221), (3472, 184376), (3968, 161329), (4123, 155264), (4256, 150412), (4712, 135856), (4852, 131936), (6944, 92188), (8246, 77632), (8491, 75392), (8512, 75206), (9424, 67928), (9704, 65968), (13888, 46094), (16492, 38816), (16982, 37696), (17024, 37603), (18848, 33964), (19408, 32984), (23047, 27776)]