839968340

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{163}}^1\times {\mathrm{191}}^1$

素因数の和:453

約数の個数: 96

約数和(自身を含む): 1904394240

約数和(自身を除く): 1064425900

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 71, 76, 95, 142, 163, 190, 191, 284, 326, 355, 380, 382, 652, 710, 764, 815, 955, 1349, 1420, 1630, 1910, 2698, 3097, 3260, 3629, 3820, 5396, 6194, 6745, 7258, 11573, 12388, 13490, 13561, 14516, 15485, 18145, 23146, 26980, 27122, 30970, 31133, 36290, 46292, 54244, 57865, 61940, 62266, 67805, 72580, 115730, 124532, 135610, 155665, 219887, 231460, 257659, 271220, 311330, 439774, 515318, 591527, 622660, 879548, 1030636, 1099435, 1183054, 1288295, 2198870, 2210443, 2366108, 2576590, 2957635, 4397740, 4420886, 5153180, 5915270, 8841772, 11052215, 11830540, 22104430, 41998417, 44208860, 83996834, 167993668, 209992085, 419984170, 839968340]

約数ペア:

[(1, 839968340), (2, 419984170), (4, 209992085), (5, 167993668), (10, 83996834), (19, 44208860), (20, 41998417), (38, 22104430), (71, 11830540), (76, 11052215), (95, 8841772), (142, 5915270), (163, 5153180), (190, 4420886), (191, 4397740), (284, 2957635), (326, 2576590), (355, 2366108), (380, 2210443), (382, 2198870), (652, 1288295), (710, 1183054), (764, 1099435), (815, 1030636), (955, 879548), (1349, 622660), (1420, 591527), (1630, 515318), (1910, 439774), (2698, 311330), (3097, 271220), (3260, 257659), (3629, 231460), (3820, 219887), (5396, 155665), (6194, 135610), (6745, 124532), (7258, 115730), (11573, 72580), (12388, 67805), (13490, 62266), (13561, 61940), (14516, 57865), (15485, 54244), (18145, 46292), (23146, 36290), (26980, 31133), (27122, 30970)]