19991781456

素因数分解:

$2^4\times 3^1\times {\mathrm{19}}^2\times {\mathrm{31}}^1\times {\mathrm{37217}}^1$

素因数の和:37297

約数の個数: 120

約数和(自身を含む): 56266470144

約数和(自身を除く): 36274688688

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 19, 24, 31, 38, 48, 57, 62, 76, 93, 114, 124, 152, 186, 228, 248, 304, 361, 372, 456, 496, 589, 722, 744, 912, 1083, 1178, 1444, 1488, 1767, 2166, 2356, 2888, 3534, 4332, 4712, 5776, 7068, 8664, 9424, 11191, 14136, 17328, 22382, 28272, 33573, 37217, 44764, 67146, 74434, 89528, 111651, 134292, 148868, 179056, 223302, 268584, 297736, 446604, 537168, 595472, 707123, 893208, 1153727, 1414246, 1786416, 2121369, 2307454, 2828492, 3461181, 4242738, 4614908, 5656984, 6922362, 8485476, 9229816, 11313968, 13435337, 13844724, 16970952, 18459632, 21920813, 26870674, 27689448, 33941904, 40306011, 43841626, 53741348, 55378896, 65762439, 80612022, 87683252, 107482696, 131524878, 161224044, 175366504, 214965392, 263049756, 322448088, 350733008, 416495447, 526099512, 644896176, 832990894, 1052199024, 1249486341, 1665981788, 2498972682, 3331963576, 4997945364, 6663927152, 9995890728, 19991781456]

約数ペア:

[(1, 19991781456), (2, 9995890728), (3, 6663927152), (4, 4997945364), (6, 3331963576), (8, 2498972682), (12, 1665981788), (16, 1249486341), (19, 1052199024), (24, 832990894), (31, 644896176), (38, 526099512), (48, 416495447), (57, 350733008), (62, 322448088), (76, 263049756), (93, 214965392), (114, 175366504), (124, 161224044), (152, 131524878), (186, 107482696), (228, 87683252), (248, 80612022), (304, 65762439), (361, 55378896), (372, 53741348), (456, 43841626), (496, 40306011), (589, 33941904), (722, 27689448), (744, 26870674), (912, 21920813), (1083, 18459632), (1178, 16970952), (1444, 13844724), (1488, 13435337), (1767, 11313968), (2166, 9229816), (2356, 8485476), (2888, 6922362), (3534, 5656984), (4332, 4614908), (4712, 4242738), (5776, 3461181), (7068, 2828492), (8664, 2307454), (9424, 2121369), (11191, 1786416), (14136, 1414246), (17328, 1153727), (22382, 893208), (28272, 707123), (33573, 595472), (37217, 537168), (44764, 446604), (67146, 297736), (74434, 268584), (89528, 223302), (111651, 179056), (134292, 148868)]