491179780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{269879}}^1$

素因数の和:269908

約数の個数: 48

約数和(自身を含む): 1269515520

約数和(自身を除く): 778335740

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 269879, 539758, 1079516, 1349395, 1889153, 2698790, 3508427, 3778306, 5397580, 7016854, 7556612, 9445765, 14033708, 17542135, 18891530, 24558989, 35084270, 37783060, 49117978, 70168540, 98235956, 122794945, 245589890, 491179780]

約数ペア:

[(1, 491179780), (2, 245589890), (4, 122794945), (5, 98235956), (7, 70168540), (10, 49117978), (13, 37783060), (14, 35084270), (20, 24558989), (26, 18891530), (28, 17542135), (35, 14033708), (52, 9445765), (65, 7556612), (70, 7016854), (91, 5397580), (130, 3778306), (140, 3508427), (182, 2698790), (260, 1889153), (364, 1349395), (455, 1079516), (910, 539758), (1820, 269879)]