20728544

素因数分解:

$2^5\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{331}}^1$

素因数の和:463

約数の個数: 48

約数和(自身を含む): 43505280

約数和(自身を除く): 22776736

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 76, 103, 152, 206, 304, 331, 412, 608, 662, 824, 1324, 1648, 1957, 2648, 3296, 3914, 5296, 6289, 7828, 10592, 12578, 15656, 25156, 31312, 34093, 50312, 62624, 68186, 100624, 136372, 201248, 272744, 545488, 647767, 1090976, 1295534, 2591068, 5182136, 10364272, 20728544]

約数ペア:

[(1, 20728544), (2, 10364272), (4, 5182136), (8, 2591068), (16, 1295534), (19, 1090976), (32, 647767), (38, 545488), (76, 272744), (103, 201248), (152, 136372), (206, 100624), (304, 68186), (331, 62624), (412, 50312), (608, 34093), (662, 31312), (824, 25156), (1324, 15656), (1648, 12578), (1957, 10592), (2648, 7828), (3296, 6289), (3914, 5296)]