257029120

素因数分解:

$2^{10}\times 5^1\times {\mathrm{17}}^1\times {\mathrm{2953}}^1$

素因数の和:2995

約数の個数: 88

約数和(自身を含む): 653058504

約数和(自身を除く): 396029384

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 128, 136, 160, 170, 256, 272, 320, 340, 512, 544, 640, 680, 1024, 1088, 1280, 1360, 2176, 2560, 2720, 2953, 4352, 5120, 5440, 5906, 8704, 10880, 11812, 14765, 17408, 21760, 23624, 29530, 43520, 47248, 50201, 59060, 87040, 94496, 100402, 118120, 188992, 200804, 236240, 251005, 377984, 401608, 472480, 502010, 755968, 803216, 944960, 1004020, 1511936, 1606432, 1889920, 2008040, 3023872, 3212864, 3779840, 4016080, 6425728, 7559680, 8032160, 12851456, 15119360, 16064320, 25702912, 32128640, 51405824, 64257280, 128514560, 257029120]

約数ペア:

[(1, 257029120), (2, 128514560), (4, 64257280), (5, 51405824), (8, 32128640), (10, 25702912), (16, 16064320), (17, 15119360), (20, 12851456), (32, 8032160), (34, 7559680), (40, 6425728), (64, 4016080), (68, 3779840), (80, 3212864), (85, 3023872), (128, 2008040), (136, 1889920), (160, 1606432), (170, 1511936), (256, 1004020), (272, 944960), (320, 803216), (340, 755968), (512, 502010), (544, 472480), (640, 401608), (680, 377984), (1024, 251005), (1088, 236240), (1280, 200804), (1360, 188992), (2176, 118120), (2560, 100402), (2720, 94496), (2953, 87040), (4352, 59060), (5120, 50201), (5440, 47248), (5906, 43520), (8704, 29530), (10880, 23624), (11812, 21760), (14765, 17408)]