28806128

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{197}}^1$

素因数の和:274

約数の個数: 80

約数和(自身を含む): 65308320

約数和(自身を除く): 36502192

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 37, 38, 52, 74, 76, 104, 148, 152, 197, 208, 247, 296, 304, 394, 481, 494, 592, 703, 788, 962, 988, 1406, 1576, 1924, 1976, 2561, 2812, 3152, 3743, 3848, 3952, 5122, 5624, 7289, 7486, 7696, 9139, 10244, 11248, 14578, 14972, 18278, 20488, 29156, 29944, 36556, 40976, 48659, 58312, 59888, 73112, 94757, 97318, 116624, 138491, 146224, 189514, 194636, 276982, 379028, 389272, 553964, 758056, 778544, 1107928, 1516112, 1800383, 2215856, 3600766, 7201532, 14403064, 28806128]

約数ペア:

[(1, 28806128), (2, 14403064), (4, 7201532), (8, 3600766), (13, 2215856), (16, 1800383), (19, 1516112), (26, 1107928), (37, 778544), (38, 758056), (52, 553964), (74, 389272), (76, 379028), (104, 276982), (148, 194636), (152, 189514), (197, 146224), (208, 138491), (247, 116624), (296, 97318), (304, 94757), (394, 73112), (481, 59888), (494, 58312), (592, 48659), (703, 40976), (788, 36556), (962, 29944), (988, 29156), (1406, 20488), (1576, 18278), (1924, 14972), (1976, 14578), (2561, 11248), (2812, 10244), (3152, 9139), (3743, 7696), (3848, 7486), (3952, 7289), (5122, 5624)]