180917770

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{1663}}^1$

素因数の和:1747

約数の個数: 64

約数和(自身を含む): 379551744

約数和(自身を除く): 198633974

約数列:

[1, 2, 5, 10, 11, 22, 23, 43, 46, 55, 86, 110, 115, 215, 230, 253, 430, 473, 506, 946, 989, 1265, 1663, 1978, 2365, 2530, 3326, 4730, 4945, 8315, 9890, 10879, 16630, 18293, 21758, 36586, 38249, 54395, 71509, 76498, 91465, 108790, 143018, 182930, 191245, 357545, 382490, 420739, 715090, 786599, 841478, 1573198, 1644707, 2103695, 3289414, 3932995, 4207390, 7865990, 8223535, 16447070, 18091777, 36183554, 90458885, 180917770]

約数ペア:

[(1, 180917770), (2, 90458885), (5, 36183554), (10, 18091777), (11, 16447070), (22, 8223535), (23, 7865990), (43, 4207390), (46, 3932995), (55, 3289414), (86, 2103695), (110, 1644707), (115, 1573198), (215, 841478), (230, 786599), (253, 715090), (430, 420739), (473, 382490), (506, 357545), (946, 191245), (989, 182930), (1265, 143018), (1663, 108790), (1978, 91465), (2365, 76498), (2530, 71509), (3326, 54395), (4730, 38249), (4945, 36586), (8315, 21758), (9890, 18293), (10879, 16630)]