890497130

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{197}}^1\times {\mathrm{643}}^1$

素因数の和:903

約数の個数: 64

約数和(自身を含む): 1744364160

約数和(自身を除く): 853867030

約数列:

[1, 2, 5, 10, 19, 37, 38, 74, 95, 185, 190, 197, 370, 394, 643, 703, 985, 1286, 1406, 1970, 3215, 3515, 3743, 6430, 7030, 7289, 7486, 12217, 14578, 18715, 23791, 24434, 36445, 37430, 47582, 61085, 72890, 118955, 122170, 126671, 138491, 237910, 253342, 276982, 452029, 633355, 692455, 904058, 1266710, 1384910, 2260145, 2406749, 4520290, 4686827, 4813498, 9373654, 12033745, 23434135, 24067490, 46868270, 89049713, 178099426, 445248565, 890497130]

約数ペア:

[(1, 890497130), (2, 445248565), (5, 178099426), (10, 89049713), (19, 46868270), (37, 24067490), (38, 23434135), (74, 12033745), (95, 9373654), (185, 4813498), (190, 4686827), (197, 4520290), (370, 2406749), (394, 2260145), (643, 1384910), (703, 1266710), (985, 904058), (1286, 692455), (1406, 633355), (1970, 452029), (3215, 276982), (3515, 253342), (3743, 237910), (6430, 138491), (7030, 126671), (7289, 122170), (7486, 118955), (12217, 72890), (14578, 61085), (18715, 47582), (23791, 37430), (24434, 36445)]