888940840

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^2\times {\mathrm{61561}}^1$

素因数の和:61610

約数の個数: 48

約数和(自身を含む): 2110960980

約数和(自身を除く): 1222020140

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 361, 380, 722, 760, 1444, 1805, 2888, 3610, 7220, 14440, 61561, 123122, 246244, 307805, 492488, 615610, 1169659, 1231220, 2339318, 2462440, 4678636, 5848295, 9357272, 11696590, 22223521, 23393180, 44447042, 46786360, 88894084, 111117605, 177788168, 222235210, 444470420, 888940840]

約数ペア:

[(1, 888940840), (2, 444470420), (4, 222235210), (5, 177788168), (8, 111117605), (10, 88894084), (19, 46786360), (20, 44447042), (38, 23393180), (40, 22223521), (76, 11696590), (95, 9357272), (152, 5848295), (190, 4678636), (361, 2462440), (380, 2339318), (722, 1231220), (760, 1169659), (1444, 615610), (1805, 492488), (2888, 307805), (3610, 246244), (7220, 123122), (14440, 61561)]