28181140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{283}}^1\times {\mathrm{383}}^1$

素因数の和:688

約数の個数: 48

約数和(自身を含む): 64124928

約数和(自身を除く): 35943788

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 283, 383, 566, 766, 1132, 1415, 1532, 1915, 2830, 3679, 3830, 4979, 5660, 7358, 7660, 9958, 14716, 18395, 19916, 24895, 36790, 49790, 73580, 99580, 108389, 216778, 433556, 541945, 1083890, 1409057, 2167780, 2818114, 5636228, 7045285, 14090570, 28181140]

約数ペア:

[(1, 28181140), (2, 14090570), (4, 7045285), (5, 5636228), (10, 2818114), (13, 2167780), (20, 1409057), (26, 1083890), (52, 541945), (65, 433556), (130, 216778), (260, 108389), (283, 99580), (383, 73580), (566, 49790), (766, 36790), (1132, 24895), (1415, 19916), (1532, 18395), (1915, 14716), (2830, 9958), (3679, 7660), (3830, 7358), (4979, 5660)]