31445140

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{197}}^1\times {\mathrm{347}}^1$

素因数の和:576

約数の個数: 48

約数和(自身を含む): 69455232

約数和(自身を除く): 38010092

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 197, 230, 347, 394, 460, 694, 788, 985, 1388, 1735, 1970, 3470, 3940, 4531, 6940, 7981, 9062, 15962, 18124, 22655, 31924, 39905, 45310, 68359, 79810, 90620, 136718, 159620, 273436, 341795, 683590, 1367180, 1572257, 3144514, 6289028, 7861285, 15722570, 31445140]

約数ペア:

[(1, 31445140), (2, 15722570), (4, 7861285), (5, 6289028), (10, 3144514), (20, 1572257), (23, 1367180), (46, 683590), (92, 341795), (115, 273436), (197, 159620), (230, 136718), (347, 90620), (394, 79810), (460, 68359), (694, 45310), (788, 39905), (985, 31924), (1388, 22655), (1735, 18124), (1970, 15962), (3470, 9062), (3940, 7981), (4531, 6940)]