19487344

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{389}}^1$

素因数の和:529

約数の個数: 40

約数和(自身を含む): 39461760

約数和(自身を除く): 19974416

約数列:

[1, 2, 4, 8, 16, 31, 62, 101, 124, 202, 248, 389, 404, 496, 778, 808, 1556, 1616, 3112, 3131, 6224, 6262, 12059, 12524, 24118, 25048, 39289, 48236, 50096, 78578, 96472, 157156, 192944, 314312, 628624, 1217959, 2435918, 4871836, 9743672, 19487344]

約数ペア:

[(1, 19487344), (2, 9743672), (4, 4871836), (8, 2435918), (16, 1217959), (31, 628624), (62, 314312), (101, 192944), (124, 157156), (202, 96472), (248, 78578), (389, 50096), (404, 48236), (496, 39289), (778, 25048), (808, 24118), (1556, 12524), (1616, 12059), (3112, 6262), (3131, 6224)]