15438540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19793}}^1$

素因数の和:19818

約数の個数: 48

約数和(自身を含む): 46555488

約数和(自身を除く): 31116948

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 19793, 39586, 59379, 79172, 98965, 118758, 197930, 237516, 257309, 296895, 395860, 514618, 593790, 771927, 1029236, 1187580, 1286545, 1543854, 2573090, 3087708, 3859635, 5146180, 7719270, 15438540]

約数ペア:

[(1, 15438540), (2, 7719270), (3, 5146180), (4, 3859635), (5, 3087708), (6, 2573090), (10, 1543854), (12, 1286545), (13, 1187580), (15, 1029236), (20, 771927), (26, 593790), (30, 514618), (39, 395860), (52, 296895), (60, 257309), (65, 237516), (78, 197930), (130, 118758), (156, 98965), (195, 79172), (260, 59379), (390, 39586), (780, 19793)]