201521308

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{149}}^1\times {\mathrm{241}}^1$

素因数の和:478

約数の個数: 48

約数和(自身を含む): 378100800

約数和(自身を除く): 176579492

約数列:

[1, 2, 4, 23, 46, 61, 92, 122, 149, 241, 244, 298, 482, 596, 964, 1403, 2806, 3427, 5543, 5612, 6854, 9089, 11086, 13708, 14701, 18178, 22172, 29402, 35909, 36356, 58804, 71818, 143636, 209047, 338123, 418094, 676246, 825907, 836188, 1352492, 1651814, 2190449, 3303628, 4380898, 8761796, 50380327, 100760654, 201521308]

約数ペア:

[(1, 201521308), (2, 100760654), (4, 50380327), (23, 8761796), (46, 4380898), (61, 3303628), (92, 2190449), (122, 1651814), (149, 1352492), (241, 836188), (244, 825907), (298, 676246), (482, 418094), (596, 338123), (964, 209047), (1403, 143636), (2806, 71818), (3427, 58804), (5543, 36356), (5612, 35909), (6854, 29402), (9089, 22172), (11086, 18178), (13708, 14701)]