28707380

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{2693}}^1$

素因数の和:2756

約数の個数: 48

約数和(自身を含む): 66531024

約数和(自身を除く): 37823644

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 41, 52, 65, 82, 130, 164, 205, 260, 410, 533, 820, 1066, 2132, 2665, 2693, 5330, 5386, 10660, 10772, 13465, 26930, 35009, 53860, 70018, 110413, 140036, 175045, 220826, 350090, 441652, 552065, 700180, 1104130, 1435369, 2208260, 2870738, 5741476, 7176845, 14353690, 28707380]

約数ペア:

[(1, 28707380), (2, 14353690), (4, 7176845), (5, 5741476), (10, 2870738), (13, 2208260), (20, 1435369), (26, 1104130), (41, 700180), (52, 552065), (65, 441652), (82, 350090), (130, 220826), (164, 175045), (205, 140036), (260, 110413), (410, 70018), (533, 53860), (820, 35009), (1066, 26930), (2132, 13465), (2665, 10772), (2693, 10660), (5330, 5386)]