12171940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{907}}^1$

素因数の和:988

約数の個数: 48

約数和(自身を含む): 28373184

約数和(自身を除く): 16201244

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 61, 110, 122, 220, 244, 305, 610, 671, 907, 1220, 1342, 1814, 2684, 3355, 3628, 4535, 6710, 9070, 9977, 13420, 18140, 19954, 39908, 49885, 55327, 99770, 110654, 199540, 221308, 276635, 553270, 608597, 1106540, 1217194, 2434388, 3042985, 6085970, 12171940]

約数ペア:

[(1, 12171940), (2, 6085970), (4, 3042985), (5, 2434388), (10, 1217194), (11, 1106540), (20, 608597), (22, 553270), (44, 276635), (55, 221308), (61, 199540), (110, 110654), (122, 99770), (220, 55327), (244, 49885), (305, 39908), (610, 19954), (671, 18140), (907, 13420), (1220, 9977), (1342, 9070), (1814, 6710), (2684, 4535), (3355, 3628)]