18545560

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{373}}^1$

素因数の和:508

約数の個数: 64

約数和(自身を含む): 46046880

約数和(自身を除く): 27501320

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 113, 220, 226, 373, 440, 452, 565, 746, 904, 1130, 1243, 1492, 1865, 2260, 2486, 2984, 3730, 4103, 4520, 4972, 6215, 7460, 8206, 9944, 12430, 14920, 16412, 20515, 24860, 32824, 41030, 42149, 49720, 82060, 84298, 164120, 168596, 210745, 337192, 421490, 463639, 842980, 927278, 1685960, 1854556, 2318195, 3709112, 4636390, 9272780, 18545560]

約数ペア:

[(1, 18545560), (2, 9272780), (4, 4636390), (5, 3709112), (8, 2318195), (10, 1854556), (11, 1685960), (20, 927278), (22, 842980), (40, 463639), (44, 421490), (55, 337192), (88, 210745), (110, 168596), (113, 164120), (220, 84298), (226, 82060), (373, 49720), (440, 42149), (452, 41030), (565, 32824), (746, 24860), (904, 20515), (1130, 16412), (1243, 14920), (1492, 12430), (1865, 9944), (2260, 8206), (2486, 7460), (2984, 6215), (3730, 4972), (4103, 4520)]