19140220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{241}}^1$

素因数の和:299

約数の個数: 72

約数和(自身を含む): 46469808

約数和(自身を除く): 27329588

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 76, 95, 110, 190, 209, 220, 241, 361, 380, 418, 482, 722, 836, 964, 1045, 1205, 1444, 1805, 2090, 2410, 2651, 3610, 3971, 4180, 4579, 4820, 5302, 7220, 7942, 9158, 10604, 13255, 15884, 18316, 19855, 22895, 26510, 39710, 45790, 50369, 53020, 79420, 87001, 91580, 100738, 174002, 201476, 251845, 348004, 435005, 503690, 870010, 957011, 1007380, 1740020, 1914022, 3828044, 4785055, 9570110, 19140220]

約数ペア:

[(1, 19140220), (2, 9570110), (4, 4785055), (5, 3828044), (10, 1914022), (11, 1740020), (19, 1007380), (20, 957011), (22, 870010), (38, 503690), (44, 435005), (55, 348004), (76, 251845), (95, 201476), (110, 174002), (190, 100738), (209, 91580), (220, 87001), (241, 79420), (361, 53020), (380, 50369), (418, 45790), (482, 39710), (722, 26510), (836, 22895), (964, 19855), (1045, 18316), (1205, 15884), (1444, 13255), (1805, 10604), (2090, 9158), (2410, 7942), (2651, 7220), (3610, 5302), (3971, 4820), (4180, 4579)]