28576340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{839}}^1$

素因数の和:992

約数の個数: 48

約数和(自身を含む): 65197440

約数和(自身を除く): 36621100

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 131, 260, 262, 524, 655, 839, 1310, 1678, 1703, 2620, 3356, 3406, 4195, 6812, 8390, 8515, 10907, 16780, 17030, 21814, 34060, 43628, 54535, 109070, 109909, 218140, 219818, 439636, 549545, 1099090, 1428817, 2198180, 2857634, 5715268, 7144085, 14288170, 28576340]

約数ペア:

[(1, 28576340), (2, 14288170), (4, 7144085), (5, 5715268), (10, 2857634), (13, 2198180), (20, 1428817), (26, 1099090), (52, 549545), (65, 439636), (130, 219818), (131, 218140), (260, 109909), (262, 109070), (524, 54535), (655, 43628), (839, 34060), (1310, 21814), (1678, 17030), (1703, 16780), (2620, 10907), (3356, 8515), (3406, 8390), (4195, 6812)]